Question

14a² + 1lab - 15b
${?}^{2}$
​

Answer 1

Answer:

(7a - 5)(2a + 3b)

Step-by-step explanation:

Given : f(a) = 14a² + 11ab - 15b

By Middle Term Factorisation

→ 14a² + 21ab - 10ab - 15b

→ 7a(2a + 3b) - 5(2a + 3b)

→ (7a - 5)(2a + 3b)