Solve the following equation for by using thequadratic equation?

Question

2x^2 + 7x-5=0

(If there is more than one solution, separate them with commas.)



I am absoutly clueless on how to do these types of questions, so any help will be greatly appreciated!

Solve for x

Answer 1

x = [- 7 ± √(49 + 40) ] / 4
x = [ - 7 ± √89 ] / 4
x = 2.43 / 4 , x = - 16.4 / 4
x = 0.61 , x = - 4 . 1

Answer 2

a=2
b=7
c=-5
x=(-b+or-sqr(b^2-4ac))/2a
=(-7+or-sqr(49-4*2*-5)/2*2
=(-7+or-sqr89)/4
x=0.609 or x=-4.108