Question

a-7 +7bc - abc Factorise​

Answer 1

Answer:

1. a - abc - 7 bc
2. $a - abc - 7 + 7bc \\ a (1 - bc) - 7(1 - bc) \\ (a - 7)(1 - bc)$

Step-by-step explanation:

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Answer 2

Given : The algebraic expression is, a-7+7bc-abc

To find : The factorisation of the given algebraic expression.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to factorise the given algebraic expression)

Here, we will be using the general algebraic method. (we will be using algebraic identities, if needed)

So,

= a-7+7bc-abc

= a-7-abc+7bc

= 1(a-7) - bc (a-7)

= (a-7) (1-bc)

(This cannot be further factorised. That's why this will be considered as the final result)

Hence, the answer to the factorisation is, (a-7) (1-bc)