Question

2a²+7ab-15b² factorise ​

Answer 1

Step-by-step explanation:

1.

$2 {a}^{2} + 7ab - 15 {b}^{2}$

2 .

$2 {a}^{2} + 10ab - 3ab - 15 {b}^{2}$

3.

$2a(a + 5b) - 3b( a- 5b)$

4.

$( a+ 5b)(2a - 3b)$

Answer 2

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