Solve by factoring. 4x^2+28x-32=0

Question

anonymous · Answer

do it by middle term spilt

anonymous · Answer

4x^2 + 32x - 4x -32 = 0

jiteshmeghwal9 · Answer

use the quadratic formula$$\LARGE{\color{red}{-b \pm \sqrt{b^2-4ac}\over2a}}$$here,
a=4
b=28
c=-32$$\LARGE{-(28) \pm \sqrt{(28)^2-4(4)(-32)}\over2(4)}$$

jiteshmeghwal9 · Answer

now solve this equation to gt ur answer @Blondisaurus :)

jiteshmeghwal9 · Answer

u can alsp choose the method of @uzumakhi he is also right and his method is also easier :)

hartnn · Answer

@Blondisaurus did u get why 28x was split into 32x-4x ?

anonymous · Answer

Take out common factor of four

anonymous · Answer

Thanx @hartnn 
this is my next question to @Blondisaurus

jiteshmeghwal9 · Answer

but for using the method of @uzumakhi u must learn about factorization :)

anonymous · Answer

i think @Blondisaurus is gone

blondisaurus · Answer

No im here. Just trying to make sense of it

anonymous · Answer

so it's clear or you are having any problem

blondisaurus · Answer

Still kinda unclear on how the answer ended up being 1,-8

anonymous · Answer

so do you understand middle term spilt

blondisaurus · Answer

No...UGH i feel retarded. >.<

anonymous · Answer

to know about middle term split you have to understand factorization

anonymous · Answer

to understand it go to following address http://www.teacherschoice.com.au/Maths_Library/Algebra/Alg_18.htm

blondisaurus · Answer

Okay I'll look over it later, right now i gotta get ready for class but thanks for going out of your way to help. Can see myself using this website alot this semester haha. Thanks again to everyone! :D

anonymous · Answer

ok 
good-luck