factorise the following X square + 2x - 63
Answers
Answered by
3
x^2-2x-63
x^2-9x+7x-63
x(x-9)-7(x-9)
(x-7)(x-9)
x=7,9
x^2-9x+7x-63
x(x-9)-7(x-9)
(x-7)(x-9)
x=7,9
Similar questions