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Evaluate \[\sqrt{64} + 5^2 - 11 - \sqrt{9}\]
is the 5^2 inside the square root?
square root of 64 = 8, 5^2 = 25, square root of 9 = 3
then you just add/subtract
ok 8+25-11+3 = ? enter that in your calculator
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25
25?
if we have \[\sqrt{64} =\sqrt{32x2}=\sqrt{16x2x2}=\sqrt{8x2x2x2}=\sqrt{4x2x2x2x2}=\sqrt{2x2x2x2x2x2}\]
its not that complicated but just a tip
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