17
-13
2x2 + 7x - 15 = (2x - 3)(x + 5)
x2 + 2x - 15 = 0(x + 5) (x - 3) = 0x = -5x = +3
(x - 5)(x + 3)
It is: x(x+7) when factorized
Sorry wasnt allowed to use punctuation. I mean 3X*2 - 15
17
2x2-1x-120 = (2x+15)(x-8) when factored
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
No. x squared is x times x, whereas 2x is x + x.
You have to experiment with different factors of 2, and different factors of 15. In this case, 2x2 - 11x + 15 = (2x - 5) (x - 3)