quadrado da soma de 2 termos :A(2x+3)²
B:(2x+3y)²
C:(5a+x)²
D:(2ab+1)²
E:(x²+y²)²
F:(ab²-a²b)²
G:(3a+2bc)²
H:(3x²-y^6)²
I:(6x+1/3)²
quadrado da diferenca de 2 termos
A:(3a-1)²
B:(3m-5n)²
C:(2x-3y)²
D:(a²-b³)²
E:(3x³-y²)²
F:(5ab-1)²
G:(ab²-a²b)²
H:(x²y-xy²)²
I:(3x²-y)²
j:(x/3-y)²
me ajudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Soluções para a tarefa
Resposta:
Explicação passo-a-passo:
Quadrado da soma de 2 termos :
PASSO a PASSO
A(2x+3)²
(2x + 3)² =
(2x + 3)(2x + 3) =
2x(2x) + 2x(3) + 3(2x) + 3(3) =
4x² + 6x + 6x + 9
4x² + 12x + 9
(2x + 3)² = (2x + 3)(2x + 3) = 4x² + 12x + 9 ( resposta)
B:(2x+3y)²
(2x + 3y)² =
(2x + 3y)(2x + 3y) =
2x(2x) + 2x(3y) + 3y(2x) + 3y(3y) =
4x² + 6xy + 6xy + 9y²
4x² + 12xy + 9y²
assim
(2x + 3y)² = (2x + 3y)(2x + 3y) = 4x² + 12xy + 9y² ( resposta)
C:(5a+x)²
(5a + x)²
(5a + x)(5a + x) =
5a(5a) + 5a(x) + x(5a) + x(x) =
25a² + 5ax + 5ax + x²
25a² + 10ax + x²
assim
(5a + x)² = (5a + x)(5a + x) = 25a² + 10ax + x² ( resposta)
D:(2ab+1)²
(2ab + 1)²
(2ab + 1)(2ab + 1) = vejaaaa
2ab(2ab) + 2ab(1) + 1(2ab) + 1(1) =
4a²b² + 2ab + 2ab + 1
4a²b² + 4ab + 1 =
(2ab + 1)² = (2ab + 1)(2ab + 1) = 4a²b² + 4ab + 1 ( resposta)
E:(x²+y²)²
(x² + y²)²
(x² + y²)(x² + y²) =
x²(x²) + x²(y²) + y²(x²) + y²(y²)
x⁴ + x²y² + x²y² + y⁴
x⁴ + 2x²y² + y⁴
(x² + y²) = (x² + y²)(x² + y²) = x⁴ + 2x²y² + y⁴ ( resposta)
F:(ab²-a²b)²
(ab²- a²b)²
(ab² - a²b)(ab² - a²b) vejaaa
ab²(ab²) + ab² (-a²b) - a²b(ab²) - a²b(-a²b) vejaaa
a²b⁴ - a³b³ - a³b³ + a⁴b²
a²b⁴ - 2a³b³ + a⁴b²
(ab² - a²b)² = (ab² - a²b)(ab² - a²b) = a²b⁴ - 2a³b³ + a⁴b² ( resposta)
G:(3a+2bc)²
(3a + 2bc)²
(3a + 2bc)(3a + 2bc) =
3a(3a) + 3a(2bc) + 2bc(3a) + 2bc(2bc)
9a² + 6abc + 6abc + 4b²c²
9a² + 12abc + 4b²c²
(3a + 2bc)² = (3a + 2bc)(3a + 2bc) = 9a² + 12abc + 4b²c²
H:(3x²-y^6)²
(3x² - y⁶)²
(3x² - y⁶)(3x² - y⁶) =
3x²(3x²) + 3x²(-y⁶) - y⁶(3x²)- y⁶(-y⁶)
9x⁴ - 3x²y⁶ - 3x²y⁶ + y¹²
9x⁴ - 6x²y⁶ + y¹²
(3x² - y⁶)² = (3x² - y⁶)(3x² - y⁶) = 9x⁴ - 6x²y⁶ + y¹² ( resposta)
I:(6x+1/3)²
(6x + 1/3)²
(6x + 1/3)(6x + 1/3) =
6x(6x) + 6x(1/3) + 1/3(6x) + 1/3(1/3) vejaaaaaa MESMO QUE
6x(1) 1(6x) 1(1)
36x² + ------------- + ----------- + -------- vejaaaaaa
3 3 3(3)
6x 6x 1
36x² + ------------ + ------------- + ----------- MESMO QUE
3 3 9
1
36x² + 2x + 2x + ---------
9
1
36x² + 4x + ------------
9
(6x + 1/3)² = (6x + 1/3)(6x + 1/3) = 36x² + 4x + 1/9 ( resposta)
quadrado da diferenca de 2 termos
A:(3a-1)²
(3a - 1)²
(3a - 1)(3a - 1)
3a(3a) + 3a(-1) - 1(3a) - 1(-1)
9a² - 3a - 3a + 1
9a² - 6a + 1
(3a - 1)² = (3a - 1)(3a - 1) = 9a² - 6a + 1 ( resposta)
B:(3m-5n)²
(3m - 5n)²
(3m - 5n)(3m - 5n)
3m(3m) + 3m(-5n) - 5n(3m) - 5n(-5n)
9m² - 15mn - 15mn + 25n²
9m² - 30mn + 25n²
(3m - 5n)² = (3m - 5n)(3m - 5n) = 9m² - 30mn + 25n² ( resposta)
C:(2x-3y)²
(2x - 3y)²
(2x - 3y)(2x - 3y)
2x(2x) + 2x(-3y) - 3y(2x) - 3y(-3y)
4x² - 6xy - 6xy + 9y²
4x² - 12xy + 9y²
(2x - 3y)² = (2x - 3y)(2x - 3y) = 4x² - 12xy + 9y² ( resposta)
D:(a²-b³)²
(a² - b³)²
(a² - b³)(a² - b³) =
a²(a²) + a²(-b³) - b³(a²) - b³(-b³)
a⁴ - a²b³ - a²b³ + b⁶
a⁴ - 2a²b³ + b⁶
(a² - b³)² = (a² - b³)(a² - b³) = a⁴ - 2a²b³ + b⁶ ( resposta)
E:(3x³-y²)²
(3x³ - y²)²
(3x³ - y²)(3x³ - y²)
3x³(3x³) + 3x³(-y²) - y²(3x³) - y²(-y²)
9x⁶ - 3x³y² - 3x³y² + y⁴
9x⁶ - 6x³y² + y⁴
(3x³ - y²)² = (3x³ - y²)(3x³ - y²) = 9x⁶ - 6x³y² + y⁴ ( resposta)
F:(5ab-1)²
(5ab - 1)²
(5ab - 1)(5ab - 1)
5ab(5ab) +5ab(-1) - 1(5ab) -1(-1)
25a²b² - 5ab - 5ab + 1
25a²b² - 10ab + 1
(5ab - 1)² = (5ab - 1)(5ab - 1) = 25a²b² - 10ab + 1 ( resposta)
G:(ab²-a²b)²
(ab² - a²b)²
(ab²- a²b)(ab² - ab²)
ab²(ab²) + a²b(-ab²) - a²b(ab²) - a²b (-a²b)
a²b⁴ - a³b³ - a³b³ + a⁴b²
a²b⁴ - 2a³b³ + a⁴b²
(ab² - a²b)² = (ab² -a²b)(ab² - a²b) = a²b⁴ - a³b³ + a⁴b² ( resposta)
H:(x²y-xy²)²
(x²y - xy²)²
(x²y - xy²)(x²y - xy²)
x²y(x²y) + x²y(-xy²) - xy²(x²y) - xy²(-xy²)
x⁴y² - x³y³ - x³y³ + x²y⁴
x⁴y² - 2x³y³ + x²y⁴
(x²y - xy²)² = (x²y - xy²)(x²y - xy²) = x⁴ - 2x³y³ + x²y⁴ ( resposta)
I:(3x²-y)²
(3x² - y)²
(3x² - y)(3x² - y)
3x²(3x²) + 3x²(-y) - y(3x²) - y(-y)
9x⁴ - 3x²y - 3x²y + y²
9x⁴ - 6x²y + y²
(3x² - y)² = (3x² - y)(3x² - y) = 9x⁴ - 6x²y + y² ( resposta)
j:(x/3-y)²
(x/3 - y)²
(x/3 - y)(x/3 - y)
x x x x
-----(------) + ------(-y) - y(------) - y(-y)
3 3 3 3
x(x) x(y) y(x)
---------- - -------------- - ----------- + y²
3(3) 3 3
x² xy xy
-------- - ------------- - ----------- + y² vejaaaa
9 3 3
x² 2xy
------ - -------------- + y²
9 3
(x/3 - y)² = (x/3 - y)(x/3 - y) = x²/9 - 2/3xy + y² ( resposta)