Question

paso a paso calcule a soma do quadrado termos abaixo:
a)(2x+1)^2
b)(5+3x)^2
c)(2x+y)^2
d)(r+4s)^2

Answer 1

Explicação passo a passo:
A) (2X + 1)²= (2X)² + 2•2X•1 + 1²= 4X² + 4X + 1

B) (5 + 3X)²= 5² + 2•5•3X + (3X)²= 25 + 30X + 9X²

C) (2X + Y)²= (2X)² + 2•2X•Y + Y²= 4X² + 4XY + Y²

D) (r + 4s)²= r² + 2•r•(4s) + (4s)²= r² + 8rs + 16s²