Question

al (x + y)²
b) (3× 7) 2
(c ) (3x + 1) 2
d) (10y + ×) 2​

Answer 1

Explicação passo-a-passo:

A) (x+y) * (x+y) = x² + xy+ yx + y² = x²+ 2xy +y²

b) (3*7)*2 = 6*14 = 84

c) (3x+1)2 = 6x+2

d) (10y+x) 2 = 20y +2x