Simplify 3 square root of 5 end root minus 2 square root of 7 end root plus square root of 45 end root minus square root of 28. 2 square root of 12 2 square root of 2 6 square root of 5 end root minus 4 square root of 7 6 square root of 10 end root minus 4 square root of 14

Simplify √ 45 to 3√ 5 and √ 28 to 2√ 7

Which gives you (3√5 +3√ 5 )+(−2√ 7 −2√ 7 )

Combine like terms = 6√ 5 −4√ 7

So the answer would be

6 square root of 5 end root minus 4 square root of 7

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