Question

Factorise
1. a³b - a²b + 5ab - 5b
2.(4a - 1)² - 8a + 2
3.9(x + a)² - 4x²​

Answer 1

Step-by-step explanation:

1) a^2b(a-1)+5b(a-1)

= (a^2b+5b) (a-1)

2) (4a+1) (4a-1)- 8a+2

Answer 2

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