Упростите вырожение (x+5)^2-5x(2-x)

Question

Упростите вырожение (x+5)^2-5x(2-x)

Answer 1

X^2 + 10x + 25 - 10x + 5x^2 = 6x^2 + 25

Answer 2

X^2+10x+25-10x+5x^2=6x^2+25