3x^2 - 24x + 45 = 0
remember Steve told you about all that "zero stuff" ?
divide each term by 3
x^2 - 8x + 15 = 0
can you think of 2 numbers that add up to -8 and multiply to get 15 ?
I am thinking -3 and -5
so
(x-3)(x-5) = 0
x-3=0 ----> x = 3
or
x-5 = 0 ----> x = 5
Hey, I have another question. this I just don't understand. I'm really starting to get very confused!!! PLEASE HELP!!!!!
Solve each equation by factoring. Check your answers.
3x^2+45=24x
1 answer
1 answer