Question

Factorisation of a -5-2/ab-bc+ca) is
1) ab)(a +5-20)
2)(b + c) (c-a-25
3) (c + a)(a + b +2c)
4)(b + a)(b-c-2)​

Answer 1

Answer:

3.(c+a)(a+b+2c)

Step-by-step explanation:

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Answer 2

answer is (a+b)[(a+b)+2c]

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