Question

answer of question no 7 and 6
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Answer 1

i hope this will help you

Answer 2

Solution

6)

= 2a³+4a²b+2ab²

= 2a(a²+2ab+b²)

= 2a(a+b)²

7)

= 50a²+98b²+140ab

= 2(25a²+49b²+70ab)

= 2(5a+7b)²