solve by factoring x^2 -7x-72=0
4 answers
no way
thanks for your help Damon!
sqrt (b^2-4ac) = sqrt (337)
that is not a perfect square so factoring will not work.
that is not a perfect square so factoring will not work.
So close!
x^2 - 6x - 72 = (x-12)(x+6)
x^2 - x - 72 = (x-9)(x+8)
x^2 - 6x - 72 = (x-12)(x+6)
x^2 - x - 72 = (x-9)(x+8)