Question

How do I factor-
EX 4x^2+7x - 15 = 0

Answer 1

Use the quadratic equation to solve this (bellow will be the image of the quadratic function)

Remember that quadratic functions are set up like so:

`ax^(2) +bx +c = 0`

That means that in this equation...

a = 4

b = 7

c = -15

^^^Plug these numbers into the quadratic equation and solve...

`\frac{-7+/-\sqrt{(7)^(2)-4(4)(-15)}}{2(4)}`

`(-7 +/-√(49+240))/(8)`

`(-7+/-√(289))/(8)`

`(-7+/-17)/(8)`

Keep in mind that +/- is ±

`(-7+17)/(8)` --->
`(5)/(4)`

`(-7-17)/(8)` ---> -3

Take the opposite of those numbers^^^ like so

(x + 3)(4x - 5)

Hope this helped!

~Just a girl in love with Shawn Mendes