Mathematics
Using Factor Theorem, show that :
(x - 2) is a factor of x3 - 2x2 - 9x + 18. Hence, factorise the expression x3 - 2x2 - 9x + 18 completely.
Related Questions
Factors of 3x3 - 2x2 - 8x are :
x(3x2 - 2x - 8)
x(x - 2)(3x + 4)
2x(x - 4)(2x + 1)
x(x - 4)(2x + 1)
Factors of 4 + 4x - x2 - x3 are :
(2 + x)(2 - x)(1 + x)
(x - 2)(1 + x)(2 + x)
(x + 2)(x - 2)(1 - x)
(2 + x)(x - 1)(2 - x)
Using Factor Theorem, show that :
(x + 5) is a factor of 2x3 + 5x2 - 28x - 15. Hence, factorise the expression 2x3 + 5x2 - 28x - 15 completely.
Using the remainder theorem, factorise each of the following completely :
3x3 + 2x2 - 19x + 6