Factorise: 5 + 7x - 6x2 - Mathematics

factorise: 5 + 7x - 6x²

Sum

5 + 7x - 6x²

= 5 + 10x - 3x - 6x²

= 5(1 + 2x) - 3x(1 + 2x)

= (1 + 2x)(5 - 3x)

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Factorisation by Grouping

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Chapter 13: Factorisation - Exercise 13 (D) [Page 161]

Chapter 13 Factorisation
Exercise 13 (D) | Q 18 | Page 161

Factorise : ab² - (a - c) b - c

factorise: x² + 4x + 3

factorise: a² − 3a − 40

Factorise: 2(x + 2y)² − 5(x + 2y) + 2

factorise: 15(5x - 4)² - 10(5x - 4)

Factorise the following by grouping the terms:
8(2a + b)² - 8a -4b

Factorise the following by grouping the terms:
2m³ - 5n² - 5m²n + 2mn

Factorise the following by grouping the terms:
9x³ + 6x²y² - 4y³ - 6xy

Factorise the following by grouping the terms:
p²x² + (px² + 1)x + p

Factorise the following by grouping the terms:
x² - (p + q)x + pq