let f(x)=2x^2+7x+6 find all x such that f(x)=0

Answer 1

what is that

Answer 2

You are just solving the quadratic
2x^2+7x+6 = 0 , which just happens to factor nicely to
(x+2)(2x+3) = 0

so x = -2 or x = -3/2