Question

3,59²+ 2×3,59×1,61+1,61²​

Answer 1

Resposta:

a²+2*a*b+b²=(a+b)²

3,59²+ 2×3,59×1,61+1,61²=(3,59+1,61)² =5,2² =27,04

Answer 2

Resposta:

$3.59^2+2\cdot \:3.59\cdot \:1.61+1.61^2\\\\3.59^2+11.5598+1.61^2\\\\12.8881+11.5598+1.61^2\\\\12.8881+11.5598+2.5921\\\\27.04$