Question

Factorise a²– 3a – 10​

Answer 1

(a – 5)(a + 2).

Explanation:

To factorize a²– 3a – 10​, we need to find two numbers whose product is -10 and whose sum is -3. These numbers are -5 and 2. So we can write:

a² – 3a – 10 = (a – 5)(a + 2)

Therefore, the factorization of a²– 3a – 10 is (a – 5)(a + 2).

Answer 2

(a - 5) (a + 2)

Explanation: