Question

Calcule


a) (5 + x)² =
b) (y + 3)² =
c) (6 + y)² =
6) Calcule
a) ( 3 – x)² =
b) (y – 10)² =
c) (x – y)² =
d) ( x – 6)² =

Por favor, me ajudem :)

Answer 1

A) (5+ x)2=
25+10x+x2
x2+10x+25

B) (y+3)2=
y2+2yx3+32
y2+6y+9

C) (6+y)2=
36+12y+y2
y2+12y+36

Calcule:

a) (3-x)2=
9-6x+x2
x2-6x+9

b) (y-10)2=
y2-2yX10+10 2
y2-20y+100

c) (x-y)2=
x2-2xy+y2

d) (x-6)2=
x2-2xX6+62
R: x2-12x+36

Answer 2

Resposta:

Explicação passo a passo:

a) (5 + x)²

= 5^2 + 2.5.x + x^2

= 25 + 10x + x^2

= x^2 + 10x + 25

b) (y + 3)²

= y^2 + 2.3.y + 9

= y^2 + 6y + 9

c) (6 + y)²

= 36 + 2.6.y + y^2

= 36 + 12y + y^2

= y^2 + 12y + 36

6) Calcule

a) ( 3 – x)²

= 3^2 - 2.3.x + x^2

= 9 - 6y + x^2

= x^2 - 6y + 9

b) (y – 10)²

= y^2 - 2.10.y + 100

= y^2 - 20y + 100

c) (x – y)²

= x^2 - 2xy + y^2

d) ( x – 6)²

= x^2 - 2.6.x + 36

= x^2 - 12x + 36