10x^2=3(x+9)

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Solution for 10x^2=3(x+9) equation:


Simplifying
10x2 = 3(x + 9)

Reorder the terms:
10x2 = 3(9 + x)
10x2 = (9 * 3 + x * 3)
10x2 = (27 + 3x)

Solving
10x2 = 27 + 3x

Solving for variable 'x'.

Reorder the terms:
-27 + -3x + 10x2 = 27 + 3x + -27 + -3x

Reorder the terms:
-27 + -3x + 10x2 = 27 + -27 + 3x + -3x

Combine like terms: 27 + -27 = 0
-27 + -3x + 10x2 = 0 + 3x + -3x
-27 + -3x + 10x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-27 + -3x + 10x2 = 0

Factor a trinomial.
(-3 + -2x)(9 + -5x) = 0

Subproblem 1

Set the factor '(-3 + -2x)' equal to zero and attempt to solve: Simplifying -3 + -2x = 0 Solving -3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2x = 0 + 3 -2x = 0 + 3 Combine like terms: 0 + 3 = 3 -2x = 3 Divide each side by '-2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(9 + -5x)' equal to zero and attempt to solve: Simplifying 9 + -5x = 0 Solving 9 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -5x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -5x = 0 + -9 -5x = 0 + -9 Combine like terms: 0 + -9 = -9 -5x = -9 Divide each side by '-5'. x = 1.8 Simplifying x = 1.8

Solution

x = {-1.5, 1.8}

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