Factorise:
(i) 12x²-7x+1 (ii)2x²+7x+3 (iii)6x²+5x-6
(iv)3x²-x-4 (v) 6x²+17x+5
(Who can answer me,..I'II give bainliest )
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Answer:
(i) 12x
2
−7x+1
=12x
2
−4x−3x+1
=4x(3x−1)−1(3x−1)
=(4x−1)(3x−1)
(ii) 2x
2
+7x+3
=2x
2
+6x+x+3
=2x(x+3)+1(x+3)
=(2x+1)(x+3)
(iii) 6x
2
+5x−6
=6x
2
+9x−4x−6
=3x(2x+3)−2(2x+3)
=(3x−2)(2x+3)
(iv)) 3x
2
−x−4
=3x
2
−4x+3x−4
=x(3x−4)+1(3x−4)
=(3x−4)(x+1)
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