Question

how do I factor a Quadratic Function

Answer 1

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Answer 2

consider a equation

ax^2+bx+c

put c into product of two numbers such that their sum is equal to b.

let the numbers are e and f

ax^2+ex+fx+c

taking common factor you can simplify

Answer 3

\[x=((-b)\pm \sqrt{b ^{2}-4ac)})\div2a\]

Answer 4

thanks. my equation i am working on is x^2 -x-72. how would i solve that?

Answer 5

yep

-72 is put into two products -9 and 8

sum of -9 and 8 is -1

so satisfied

x^2-9x+8x-72

x(x-9)+8(x-9)

(x+8)(x-9)

Answer 6

sry a small mistake you should check product of a and c

Answer 7

in your problem 1 and -72