Question

How do you simplify (x2+7x−5)−(3x2+1)?

Answer 1

x2+7x-5-6x-1=0

x2+x-6=0

x2+3x-2x-6=0

x(x+3)-2(x+3)=0

(x-2)(x+3)=0

x=2

x=-3