Question

Factorise

(a + b)(2a + b) +(3a +2b)(a + b)-(a + b)(a + 4b)
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Answer 1

Answer:

a + b * 2a + b + 3a + 2b * a + b - a + b * a + 4b

2a2 + b2 + 3a2 + b2 - a2 + 4b2

2a2 + 3a2 - a2 + b2 + b2 + 4b2

4a2 + 6b2

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Answer 2

Questions (a+b)(2a+b)+(3a+2b)(a+b)-(a+b)(a+4b)

Answer = (a+b)(4a-b)