Question

Sum of 4√63+5√7-8√28 is :-

Answer 1

Step-by-step explanation:

4 √ 63 + 5 √ 7 - 8 √ 28

= 4 × 3 √7 + 5 √ 7 - 8 × 2 √ 7

= 12 √7 + 5 √ 7 - 16 √ 7

= √ 7 ANS

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Answer 2

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