Factorise the Following by Splitting the Middle Term: 7x2 + 40x - 12

Factorise the following by splitting the middle term:
7x² + 40x - 12

Sum

7x² + 40x - 12
= 7x² + 42x - 2x - 12
= 7x(x + 6) - 2(x + 6)
= (x + 6)(7x - 2).

shaalaa.com

Is there an error in this question or solution?

Chapter 5: Factorisation - Exercise 5.2

Chapter 5 Factorisation
Exercise 5.2 | Q 1.9

Factorise.

y²+ 24y + 144

Factorise.

5y²+ 5y − 10

Factorise.

3x²+ 14x + 15

Factorise : a² - 3a - 40

Find trinomial (quadratic expression), given below, find whether it is factorisable or not. Factorise, if possible.
3x² + 4x - 10

Factorise the following by splitting the middle term:
y² - 2y - 24

Factorise the following:
y² + 3y + 2 + by + 2b

Factorise the following:
5(3x + y)² + 6(3x + y) - 8

Factorise the following:
(p² + p)² - 8(p² + p) + 12

Factorise the following:
(t² - t)(4t² - 4t - 5) - 6