Question

Medal OR fan please help
Factor: x2 - 9x + 12

Answer 1

We can use the quadratic formula to solve this

\[\large \frac{ -b \pm \sqrt{b^2 - 4ac} }{ 2a }\]

You have the equation x² - 9x + 12

so your

a = 1
b = -9
c = 12

Plug those into that equation and you'll find your 2 answers...

Answer 2

(x + 1)(x - 12)
(x - 2)(x + 6)
(x - 2)(x - 6)
prime
I think its prime right?

Answer 3

Right it is prime...just wanted to make sure you knew what that formula was :)

yeah because the 2 numbers in those parenthesis while they DO multiply to = 12...non add to make -9 so yes...it is prime

Answer 4

okay thank you!

Answer 5

No problem good work!