4. Factorise :
(i) 12r-7x+1
(iii) 6x2 + 5x-6
(ii) 2x + 7x +3
(iv) 3x2 - X-4
Answers
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Step-by-step explanation:
HERE IS YOUR ANSWER:
(i)=12x^2-7x+1
=12x 2 −7x+1
=12x 2 −4x−3x+1
=4x(3x−1)−1(3x−1)
=(3x−1)(4x−1)
(ii)6x^2+5x-6
=6x 2 +5x−6
=6x 2 +9x−4x−6
=3x(2x+3)−2(2x+3)
=(2x+3)(3x−2)
(iii)2x^2+7x+3
=2x 22+7x+3
=2x 2+6x+x+3
=2x(x+3)1(x+3)
=(x+3)(2x+1)
(iv)3x^2-x-4
=3x 2−x−4
=3x 2−4x+3x−4
=x(3x−4)1(3x−4)
=(3x−4)(x+1)
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