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2X * X + 3 = 100
do what it says; multiply
2X2 + 3 = 100
subtract 3 from each side
2X2 = 97
divide each side by 2
X2 = 97/2
take square root both sides
X = sqrt(97/2)
you could rationalize the denominator by this method, form of one
X = sqrt(97/2)
same as saying
X = sqrt(97)/sqrt(2) ( use sqrt(2)/sqrt(2) as form of one )
X = sqrt(97)/sqrt(2) * sqrt(2)/sqrt(2)
X = sqrt(194)/2
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∙ 12y ago
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NM equals 2x + 1, as stated in the question!
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Is 2x plus 7 equals 8 equivalent to 2x equals 1?
no x would be 0.5 because two times 0.5 is 1 ( 2x ) and then add 7 equals 8 ( plus seven equals 8 )
2X plus 2X plus 9X equals?
it equals 13X.
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x + 50 = 2x + 100 50 = 2x+100-x 50 = x + 100 50-100=x -50=x -50+50=0 -100+100=0 it is zero
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x2+2x=0 4x=0 x=0 if you meant soemthing times 2 plus 2 times x =0 solve for x then y2+2x=0 y+x=0 x=-y so if x is 2 y is -2, if x is 100 y is -100
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-2x plus 3y equals 1
-2x plus 1 equals 2x plus 1?
x = 0
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X=7
If AB equals 3x plus 5 and NM equals 2x plus 1 then NM equals what?
NM equals 2x + 1, as stated in the question!
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x=0
8x-7 plus 2x equals 6 plus 5x plus 2?
8x-7 plus 2x equals 6 plus 5x plus 2?
