SOLUTION: Simplify (2 \/5 + 3 \/7)^2. [[[AKA (2 sqrt 5 + 3 sqrt 7)^2 ]]]]
So I am having trouble on this problem. I'm not sure how the radicals are to be simplified, or where the powe
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Question 606805: Simplify (2 \/5 + 3 \/7)^2. [[[AKA (2 sqrt 5 + 3 sqrt 7)^2 ]]]]
So I am having trouble on this problem. I'm not sure how the radicals are to be simplified, or where the power fits into the answer. This is a 4 point question on my test, I would appreciate help :) Thank you!
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
this is a FOILing problem (multiplying 2 binomials) ___ the radicals and their coefficients are multiplied
2^2 * √5^2 + 2 * 3 * √5 * √7 + 3 * 2 * √7 * √5 + 3^2 * √7^2
4 * 5 + 6 * √35 + 6 * √35 + 9 * 7
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