Question

Find all values of
x such that 2x^2 +9x - 5=0

Answer 1

You can either factor or use the quadratic equation.

Factor:
2x^2 + 9x - 5 = 0

x^2 + 9x - 10

(x - 1)(x + 10)

x = 1 ; x = -10

Answer 2

-5,0.5

Explanation:

You can use factoring

Factor the coefficient of the first and last terms.

2,1 -1,5

(2x-1)(x+5)=0

Using the zero product property you get 1/2,-5