7x^2-15x+11=2x^2-3x+4

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Solution for 7x^2-15x+11=2x^2-3x+4 equation:


Simplifying
7x2 + -15x + 11 = 2x2 + -3x + 4

Reorder the terms:
11 + -15x + 7x2 = 2x2 + -3x + 4

Reorder the terms:
11 + -15x + 7x2 = 4 + -3x + 2x2

Solving
11 + -15x + 7x2 = 4 + -3x + 2x2

Solving for variable 'x'.

Reorder the terms:
11 + -4 + -15x + 3x + 7x2 + -2x2 = 4 + -3x + 2x2 + -4 + 3x + -2x2

Combine like terms: 11 + -4 = 7
7 + -15x + 3x + 7x2 + -2x2 = 4 + -3x + 2x2 + -4 + 3x + -2x2

Combine like terms: -15x + 3x = -12x
7 + -12x + 7x2 + -2x2 = 4 + -3x + 2x2 + -4 + 3x + -2x2

Combine like terms: 7x2 + -2x2 = 5x2
7 + -12x + 5x2 = 4 + -3x + 2x2 + -4 + 3x + -2x2

Reorder the terms:
7 + -12x + 5x2 = 4 + -4 + -3x + 3x + 2x2 + -2x2

Combine like terms: 4 + -4 = 0
7 + -12x + 5x2 = 0 + -3x + 3x + 2x2 + -2x2
7 + -12x + 5x2 = -3x + 3x + 2x2 + -2x2

Combine like terms: -3x + 3x = 0
7 + -12x + 5x2 = 0 + 2x2 + -2x2
7 + -12x + 5x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
7 + -12x + 5x2 = 0

Factor a trinomial.
(1 + -1x)(7 + -5x) = 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 '(7 + -5x)' equal to zero and attempt to solve: Simplifying 7 + -5x = 0 Solving 7 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -5x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5x = 0 + -7 -5x = 0 + -7 Combine like terms: 0 + -7 = -7 -5x = -7 Divide each side by '-5'. x = 1.4 Simplifying x = 1.4

Solution

x = {1, 1.4}

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