It is approx 0.8219
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
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square root -5 minus 14 or - square root -5 minus 14
√500 - √80 = √5√100 - √5√16 = 10√5 - 4√5 = 6√5
133.830402
It is approx 0.8219
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
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1.38196601
square root -5 minus 14 or - square root -5 minus 14
[ 2 minus square root of 5 ] is the only one.
root(x+5)-root(x-5)=2 root(x+5)=2-root(x-5) x+5=4-4root(x-5)+x-5 4root(x-5)+6=0 root(x-5)=-3/2 x-5=9/4 x=9/4 +5 x=29/4
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
sqrt(360) - sqrt(250)/sqrt(5) = 11.90, approx.
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