ANSWERS: 3
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You must have mistyped something. "2^2-5=93" is not a meaningful equation. As for the second equation: I assume that you can solve y^2=81. This will be helpful in solving (anything else)^2 = 81.
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the first one was a stupid question the answer for the second question [x+4]^2=81 x^2+8x+16=81 x^2+8X-65=0 x^2+13x-5x-65=0 x[x+13]-5[x+13]=0 [x+13][x-5] there are two answers for x x+13=0 or x-5=0 x=-13 x=5
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I'm thinking that you need to do your own homework and not have others do it for you.
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