Question

a2a square + 3 - 88 factorize
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Answer 1

Correct Question:

→ a² + 3a - 88

Answer:

(a + 11)(a - 8)

Step-by-step explanation:

Factorisation form of a² + 3a - 88 is (a + 11)(a - 8).

We have to Factorise a² + 3a - 88

• Equation: a² + 3a - 88

Solving by Splitting Method:

a² + 3a - 88

→ a² + 11a - 8a - 88

→ a(a + 11) -8(a + 11)

→ (a + 11)(a - 8)

Therefore, Factorisation form of a² + 3a - 88 is (a + 11)(a - 8).

Answer 2

Question :

Factorise : a² + 3a - 88

Solution :

→ a² + 3a - 88

The above equation is in the form ax² + bx + c

Now.. we have to find a number whose sum is 'b' i.e. (+3) and product is 'c' i.e. (-88)

→ a² + 3a - 88

Now.. 11 - 8 = 3 which is 'b' and 11 × (-8) = -88 which is 'c'

So,

→ a² + (11a - 8a) - 88

→ a² + 11a - 8a - 88

Take 'a' common a² + 11a and '-8' common from -8a - 88.

→ a(a + 11) -8(a + 11)

→ (a - 8) (a + 11)

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(a - 8) (a + 11) are the factors of a² + 3a - 88.

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