calcule a) (x + y) elevado a 2=? b) (x + 2) elevado a 2=? c) (3x + 2) elevado a 2=? d) (2x + 1) elevado a 2= ? e) (5 + 3x) elevado a 2=? f) (2x + y) elevado a 2=?
Soluções para a tarefa
Respondido por
0
a) (x+y)²
(x+y)(x+y)
x²+xy+xy+y²
x²+2xy+y²
b) (x+2)²
(x+2)(x+2)
x²+2x+2x+4
x²+4x+4
c) (3x+2)²
(3x+2)(3x+2)
9x²+6x+6x+4
9x²+12x+4
d) (2x+1)²
(2x+1)(2x+1)
4x²+2x+2x+1
4x²+4x+1
e) (5+3x)²
(5+3x)(5+3x)
25+15x+15x+9x
25+30x+9x
f) (2x+y)²
(2x+y)(2x+y)
4x²+2xy+2xy+y²
4x²+4xy+y²
(x+y)(x+y)
x²+xy+xy+y²
x²+2xy+y²
b) (x+2)²
(x+2)(x+2)
x²+2x+2x+4
x²+4x+4
c) (3x+2)²
(3x+2)(3x+2)
9x²+6x+6x+4
9x²+12x+4
d) (2x+1)²
(2x+1)(2x+1)
4x²+2x+2x+1
4x²+4x+1
e) (5+3x)²
(5+3x)(5+3x)
25+15x+15x+9x
25+30x+9x
f) (2x+y)²
(2x+y)(2x+y)
4x²+2xy+2xy+y²
4x²+4xy+y²
Perguntas interessantes