Question

4x^2+x-18 factorise the following

Answer 1

Answer:

$4x {}^{2} + x - 18 \\ 4x {}^{2} - 8x + 9x - 18 \\ 4x(x - 2)9( x - 2) \\ (x - 2)(4x + 9)$

Answer 2

Answer:

4x²+x-18

=4x² + 9x-8x - 18

=x(4x + 9) - 2(4x+9)

=(x - 2)(4x + 9)