#
Exercise 14F

Factorise:

1. (a+b)2-1

## Answers

Answered by

1

**Answer:**

expand (a+b)2-1:2a+2b-1

steps

(a+b)2-1

=2(a+b)-1

expand 2 (a+b):2a +2b

=2a+2b-1

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