Question

X^2-45x+324=0

Answer 1

Are you trying to factor of solve?

Answer 2

Hint: 36 x 9 = 324

Answer 3

If you are going to factor, look for things that will multiply to give you +324 and add to give you -45. Then we can factor by grouping, which would be the simplest way to do so.

Answer 4

factors are -9 and -36

Answer 5

Set each of the factors of the left-hand side of the equation equal to 0

Answer 6

So, now that we see that 36 and 9 multiply to give us 324, we are 1/2 way there to getting it set up. But, 36+9 doesn't =45. -36+-9 does add to give us -45 and multiply to give us 324 though! Now we can rewrite this as: