(X-5)(X+4)=0
so X-5=0 -----X=5
and X=4=0 so X=-4
it factors to (X-5)(X+4)
so X=5,-4
Chat with our AI personalities
(x + 2)(x - 4)
x(x - 2)
It is impossible but if it were x squared plus 2x minus 15 the equation would be (x+5) (x-3) with x being equal to either -5 or 3. If the original problem was x squared minus 2x minus 15 the equation would be (x-5)(x+3) and x would be equal to either 5 or -3
x^2(1 - x)(1 + x)
x2 - 3x - 40 = (x - 8) (x + 5)