Math, asked by wwwratanchandrapul, 3 months ago

solve this problem with explanation ​

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Answers

Answered by ScienceMathsLover
1

Answer:

(a) (a+2b)(9b-2a)

Step-by-step explanation:

(a+2b)²-(a+2b)(3a-7b)

= (a²+b²+4ab) - (3a²+6ab-7ab-14b²)

= a²+b²+4ab-3a²-6ab+7ab+14b²

= a²-3a²+4ab-6ab+7ab+14b²+b²

= -2a²+5ab+18b²

= 18b²+5ab-2a²

= 18b²+9ab+4ab-2a²

= 9b(2b+a)-2a(2b+a)

= (2b+a)(9b-2a)

= (a+2b)(9b-2a)

Answered by elangumaranj5
0
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