Question

Resolva o quadrado da soma:
A) (9x + 4)²
B) (3y + 6)²
C) (z + 17)²
D) (2a + 3)²​

Answer 1

Resposta:

a) (9x)²+2×9x×4+4²

81x²+72x+16

b) (3y)²+2×3y×6+6²

9y²+36y+36

c) z²+2z×17+17²

z²+34z+289

d) ( 2a)²+2×2a×3+3²

4a²+12a+9