Question

Find roots of quadratic equation sq rt 2x^2 + 7x +5 sq rt2

Answer 1

2x^2+7x+5=0
2x^2+2x+5x+5=0
2x(x+1)+5(x+1)=0
(2x+5)(x+1)=0
2x+5=0,x+1=0
x=-5/2 or x=-1