To factorise this completely you need to be aware that 216 = 63.
(x3 + 216) = (x + 6)(x2 - 6x + 36)
Chat with our AI personalities
You need to find a pair of factors of the ( -27 ) that add up to the ( 6 ).
+9 and -3 will do it.
x2 + 6x - 27 = (x + 9) (x - 3)
x2 + 18x - 50 does not have rational factors.
(x + 4)(x + 8)
Assuming the question is written as: x2+11x-12 This would factor to: (x+12)(x-1)
(x + 5y)(x - 3y)
(x + 2)(x - 1)