Question

factorise 8a^2-22ab+15b^2​

Answer 1

Answer:

(4a-5b)(2a-3b)

Step-by-step explanation:

8a^2-22ab+15b^2

8a^2-10ab-12ab+15b^2

2a(4a-5b)-3b(4a-5b)

(4a-5b)(2a-3b)

Answer 2

The factorisation of $8a^2-22ab+15b^2$ is equal to (2a - 3b)(4a - 5b).

Step-by-step explanation:

We have,

$8a^2-22ab+15b^2$

To find, the factorisation of $8a^2-22ab+15b^2$ = ?

∴ $8a^2-22ab+15b^2$

By factorisation method,

$=8a^2-10ab-12ab+15b^2$

= 2a(4a - 5b) -3b(4a - 5b)

= (2a - 3b)(4a - 5b)

∴ The factorisation of $8a^2-22ab+15b^2$ = (2a - 3b)(4a - 5b)

Thus, the factorisation of $8a^2-22ab+15b^2$ is equal to (2a - 3b)(4a - 5b).