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Factorise :- 12x^2 – 7x + 1 - Mathematics

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Factorise :- 12x2 – 7x + 1

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Solution

We can find two numbers such that pq = 12 × 1 = 12 and q = −7. They are p = −4 and = −3.

Here, 12x2 − 7x + 1 = 12x2 − 4− 3x + 1

                               = 4(3− 1) − 1 (3− 1)

                               = (3− 1) (4− 1)

Concept: Factorising the Quadratic Polynomial (Trinomial) of the type ax2 + bx + c, a ≠ 0.
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APPEARS IN

NCERT Class 9 Maths
Chapter 2 Polynomials
Exercise 2.4 | Q 4.1 | Page 44
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