Question

a^2+3a-88
factorise it please​

Answer 1

Answer:

Step-by-step explanation:

a^2+3a-88

a^2+11a-8a-88

a(a+11)-8(a+11)

(a-8)(a+11)

Answer 2

Step-by-step explanation:

To factories a2 + 3a – 88, we will find two numbers p and q such that p + q = 3 and pq = -88.

Now, 11 + (-8) = 3

And 11 x (-8) = -88

Splitting the middle term 3a in the given quadratic as 11a – 8a, we get:

a2 + 3a – 88 = a2 + 11a – 8a – 88

= (a2 + 11a) – (8a + 88)

= a(a + 11 ) – 8(a + 11)

= (a – 8)(a + 11)

hope it helps you

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