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Q: 8 square root of 5 minus 5 square root of 54?

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133.830402

5*sqrt(54) = 36.74 approx.

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square root -5 minus 14 or - square root -5 minus 14

24

1.38196601

X2+5x-6. a=1, b=5, and c=-6 The formula is: -b plus or minus the square root of b squared minus 4ac all over 2a. -b+square root of b2-4ac ---- 2a -5 plus or minus the square root of 5 squared minus 4(1)(-6) -5 plus or minus the square root of 25-4(-6) -5 plus or minus the square root of 25+24 -5 plus or minus the square root of 49 -5 plus or minus 7 Here is where you split into two different answers: Number 1: -5 plus 7= 2 Number 2: -5 minus 7= -12 Your answer is X=2, -12

[ 2 minus square root of 5 ] is the only one.

sqrt(360) - sqrt(250)/sqrt(5) = 11.90, approx.

Unless you are dealing with complex numbers (uni or college, mainly) you wont get an answer that makes sense. squareroot(-14-(squareroot 5)) ? 11.7i, where i is the square root of minus 1.

√500 - √80 = √5√100 - √5√16 = 10√5 - 4√5 = 6√5

8*sqrt(36)*5*sqrt(54) = 8*6*5*sqrt(54) = 240*sqrt(54) = 720*sqrt(6)

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