Question

Factorise the following:
${4x}^{2} + 15x - 4 \\ { - 6x}^{2} + 10x + 24$
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Answer 1

Answer:

4x^2+15x-4

=4x^2+16x-x-4

=4x(x+4)-1(x+4)

=(x+4)(4x-1)

-6x^2+10x+24

= -6x^2+18x-8x+24

= -6x(x-3)-8(x-3)

=(x-3)(-6x-8)

= -2(3x+4)(x-3)