Question

3) Complete os espaços
a) ( + 3)2 = x2 +6x +
b) (2a +_)= 4a? +
+ b2
c) (3x + 5)2 =
+ 30x +
d) (-3)2 = a? -​

Answer 1

Resposta:

A) ( x+3)2 = x2+ 6x + 9

B) (2a + b)2 = 4a+4b+b2

C) (3x +5)2 = 9x2+ 30x+ 25

D) (a-3)2=a2- 6a + 9