0=-20x^2+44x-21

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Solution for 0=-20x^2+44x-21 equation:


Simplifying
0 = -20x2 + 44x + -21

Reorder the terms:
0 = -21 + 44x + -20x2

Solving
0 = -21 + 44x + -20x2

Solving for variable 'x'.

Combine like terms: 0 + 21 = 21
21 + -44x + 20x2 = -21 + 44x + -20x2 + 21 + -44x + 20x2

Reorder the terms:
21 + -44x + 20x2 = -21 + 21 + 44x + -44x + -20x2 + 20x2

Combine like terms: -21 + 21 = 0
21 + -44x + 20x2 = 0 + 44x + -44x + -20x2 + 20x2
21 + -44x + 20x2 = 44x + -44x + -20x2 + 20x2

Combine like terms: 44x + -44x = 0
21 + -44x + 20x2 = 0 + -20x2 + 20x2
21 + -44x + 20x2 = -20x2 + 20x2

Combine like terms: -20x2 + 20x2 = 0
21 + -44x + 20x2 = 0

Factor a trinomial.
(7 + -10x)(3 + -2x) = 0

Subproblem 1

Set the factor '(7 + -10x)' equal to zero and attempt to solve: Simplifying 7 + -10x = 0 Solving 7 + -10x = 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 + -10x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -10x = 0 + -7 -10x = 0 + -7 Combine like terms: 0 + -7 = -7 -10x = -7 Divide each side by '-10'. x = 0.7 Simplifying x = 0.7

Subproblem 2

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

Solution

x = {0.7, 1.5}

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