-x² from both side at equation,then you get: -5x+2=x+8
then-x from both side, isolated the equation, because in this way it's how you get the value for x.
after-x, you will get: -6x+2=8, well it's not isolated, because we need variable and real numbers are in the each side of the equation, so ,-2.
here you will get:-6x=6, and divide -6, you will get the answer for x.
x²-5x+2=x²+ x+8
-5x+2=x+8
2-8=x+5x
-6=6x
x=-1
x^2 - 5x + 2 = x^2 + x + 8
x^2 - x^2 - 5x + 2 = x + 8 by subtracting x^2 from each side
-5x + 2 = x + 8 by subtracting the quadratic terms on the left side
2 = x + 8 + 5x by adding 5x to each side
-8 + 2 = x + 5x by subtracting 8 from each side
-6 = 6x by performing the additions on each side
6x = -6 by symmetry
x = -6 / 6 by dividing each side by 6
x = -1 by performing the division on the right side
x= -1
-1
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-x² from both side at equation,then you get: -5x+2=x+8
then-x from both side, isolated the equation, because in this way it's how you get the value for x.
after-x, you will get: -6x+2=8, well it's not isolated, because we need variable and real numbers are in the each side of the equation, so ,-2.
here you will get:-6x=6, and divide -6, you will get the answer for x.
x²-5x+2=x²+ x+8
-5x+2=x+8
2-8=x+5x
-6=6x
x=-1
x^2 - 5x + 2 = x^2 + x + 8
x^2 - x^2 - 5x + 2 = x + 8 by subtracting x^2 from each side
-5x + 2 = x + 8 by subtracting the quadratic terms on the left side
2 = x + 8 + 5x by adding 5x to each side
-8 + 2 = x + 5x by subtracting 8 from each side
-6 = 6x by performing the additions on each side
6x = -6 by symmetry
x = -6 / 6 by dividing each side by 6
x = -1 by performing the division on the right side
x=-1
x= -1
-1