4x^2=30x+100

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Solution for 4x^2=30x+100 equation:


Simplifying
4x2 = 30x + 100

Reorder the terms:
4x2 = 100 + 30x

Solving
4x2 = 100 + 30x

Solving for variable 'x'.

Reorder the terms:
-100 + -30x + 4x2 = 100 + 30x + -100 + -30x

Reorder the terms:
-100 + -30x + 4x2 = 100 + -100 + 30x + -30x

Combine like terms: 100 + -100 = 0
-100 + -30x + 4x2 = 0 + 30x + -30x
-100 + -30x + 4x2 = 30x + -30x

Combine like terms: 30x + -30x = 0
-100 + -30x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-50 + -15x + 2x2) = 0

Factor a trinomial.
2((-5 + -2x)(10 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + -2x)' equal to zero and attempt to solve: Simplifying -5 + -2x = 0 Solving -5 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2x = 0 + 5 -2x = 0 + 5 Combine like terms: 0 + 5 = 5 -2x = 5 Divide each side by '-2'. x = -2.5 Simplifying x = -2.5

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 = {-2.5, 10}

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