Question

Subtract -x2+10x-5 from 5x-10

Answer 1

$5x−10−(− {x}^{2} +10x−5)=5x−10+ {x}^{2} −10x+5</p><p>= {x}^{2} +5x−10x−10+5= {x}^{2} −5x−5.</p><p></p><p>$