3x^2-7x+15=25

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Solution for 3x^2-7x+15=25 equation:


Simplifying
3x2 + -7x + 15 = 25

Reorder the terms:
15 + -7x + 3x2 = 25

Solving
15 + -7x + 3x2 = 25

Solving for variable 'x'.

Reorder the terms:
15 + -25 + -7x + 3x2 = 25 + -25

Combine like terms: 15 + -25 = -10
-10 + -7x + 3x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-10 + -7x + 3x2 = 0

Factor a trinomial.
(-1 + -1x)(10 + -3x) = 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 + -3x)' equal to zero and attempt to solve: Simplifying 10 + -3x = 0 Solving 10 + -3x = 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 + -3x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -3x = 0 + -10 -3x = 0 + -10 Combine like terms: 0 + -10 = -10 -3x = -10 Divide each side by '-3'. x = 3.333333333 Simplifying x = 3.333333333

Solution

x = {-1, 3.333333333}

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