2x^2-7x-10=x^2+2x

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Solution for 2x^2-7x-10=x^2+2x equation: 


Simplifying
2x2 + -7x + -10 = x2 + 2x

Reorder the terms:
-10 + -7x + 2x2 = x2 + 2x

Reorder the terms:
-10 + -7x + 2x2 = 2x + x2

Solving
-10 + -7x + 2x2 = 2x + x2

Solving for variable 'x'.

Reorder the terms:
-10 + -7x + -2x + 2x2 + -1x2 = 2x + x2 + -2x + -1x2

Combine like terms: -7x + -2x = -9x
-10 + -9x + 2x2 + -1x2 = 2x + x2 + -2x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
-10 + -9x + 1x2 = 2x + x2 + -2x + -1x2

Reorder the terms:
-10 + -9x + 1x2 = 2x + -2x + x2 + -1x2

Combine like terms: 2x + -2x = 0
-10 + -9x + 1x2 = 0 + x2 + -1x2
-10 + -9x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-10 + -9x + 1x2 = 0

Factor a trinomial.
(-1 + -1x)(10 + -1x) = 0


Subproblem 1
Set the factor '(-1 + -1x)' equal to zero and attempt to solve:

Simplifying
-1 + -1x = 0

Solving
-1 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + -1x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -1x = 0 + 1
-1x = 0 + 1

Combine like terms: 0 + 1 = 1
-1x = 1

Divide each side by '-1'.
x = -1

Simplifying
x = -1

Subproblem 2
Set the factor '(10 + -1x)' equal to zero and attempt to solve:

Simplifying
10 + -1x = 0

Solving
10 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-10' to each side of the equation.
10 + -10 + -1x = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -1x = 0 + -10
-1x = 0 + -10

Combine like terms: 0 + -10 = -10
-1x = -10

Divide each side by '-1'.
x = 10

Simplifying
x = 10
Solution
x = {-1, 10}

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