Question

Factorise the following: (a)6x^2+11x-10 (b) 5-4x-12x^2

Answer 1

Step-by-step explanation:

a. 6x^2+11x-10

6x^2+11x-10 =6x^2+15x-4x-10

6x^2+11x-10 =6x^2+15x-4x-10 =3x(2x+5)-2(2x-5)

6x^2+11x-10 =6x^2+15x-4x-10 =3x(2x+5)-2(2x-5) =(3x-2)(2x-5)

6x^2+11x-10 =6x^2+15x-4x-10 =3x(2x+5)-2(2x-5) =(3x-2)(2x-5)b. 5-4x-12x^2

6x^2+11x-10 =6x^2+15x-4x-10 =3x(2x+5)-2(2x-5) =(3x-2)(2x-5)b. 5-4x-12x^2 =5-10x+6x-12x^2

=5(1-2x)+6x(1-2x)

=(5+6x)(1-2x)

Answer 2

Answer:

a) 6x²+11x-10

6x²+15x-4x-10

3x(2x+5)-2(2x+5)

(3x-2)(2x+5)

b) -12x²-4x+5

-12x²-10x+6x+5

-2x(6x+5)+1(6x+5)

(-2x+1)(6x+5)

Step-by-step explanation:

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