Question

5x^2+2x-7=0 solve by using the quadratic formula

Answer 1

Quadratic formula :
\[x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 2

a=5
b=2
c=-7

Answer 3

i have a math test next tuesday and these are problems i get stuck on

Answer 4

\[\LARGE x_{1/2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\]
\[\LARGE ax^2+bx+c=0\]

Answer 5

can you show me how you plugged those in im lost

Answer 6

\[x=\frac{-2 \pm \sqrt{(2)^2-4(5)(-7)}}{2(5)}\]

Answer 7

what do i do with the 10 at the bottom

Answer 8

did you get the numerator?

Answer 9

ohhhh got it! thanks!

Answer 10

I hope you can solve now