Question

Simplify the expression. (d² - d+5) - (-d² + d + 5)​

Answer 1

Answer: $2d^2-2d$

Step-by-step explanation:

Given

$\Rightarrow (d^2-d+5)-(-d^2+d+5)\\\Rightarrow (d^2+d^2)-d-d+5-5=0-2d+0\\\Rightarrow 2d^2-2d=2d(d-1)$