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  • 3 years ago

√(x+4)-√(x-36)=400 how would I find x?

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  1. Grazes
    • 3 years ago
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    You can either square both sides(which is tedious in my opinion) or add (root (x-36)) to the right side and square both sides like that. I feel that that way is easier because less radicals on one side is just... easier... Remember to use the formula \[(a+b)^{2}=(a ^{2}+2ab+b ^{2})\] It'll make life easier.

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