0=-49x^2+28x-4

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Solution for 0=-49x^2+28x-4 equation:


Simplifying
0 = -49x2 + 28x + -4

Reorder the terms:
0 = -4 + 28x + -49x2

Solving
0 = -4 + 28x + -49x2

Solving for variable 'x'.

Combine like terms: 0 + 4 = 4
4 + -28x + 49x2 = -4 + 28x + -49x2 + 4 + -28x + 49x2

Reorder the terms:
4 + -28x + 49x2 = -4 + 4 + 28x + -28x + -49x2 + 49x2

Combine like terms: -4 + 4 = 0
4 + -28x + 49x2 = 0 + 28x + -28x + -49x2 + 49x2
4 + -28x + 49x2 = 28x + -28x + -49x2 + 49x2

Combine like terms: 28x + -28x = 0
4 + -28x + 49x2 = 0 + -49x2 + 49x2
4 + -28x + 49x2 = -49x2 + 49x2

Combine like terms: -49x2 + 49x2 = 0
4 + -28x + 49x2 = 0

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

Subproblem 1

Set the factor '(2 + -7x)' equal to zero and attempt to solve: Simplifying 2 + -7x = 0 Solving 2 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7x = 0 + -2 -7x = 0 + -2 Combine like terms: 0 + -2 = -2 -7x = -2 Divide each side by '-7'. x = 0.2857142857 Simplifying x = 0.2857142857

Subproblem 2

Set the factor '(2 + -7x)' equal to zero and attempt to solve: Simplifying 2 + -7x = 0 Solving 2 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7x = 0 + -2 -7x = 0 + -2 Combine like terms: 0 + -2 = -2 -7x = -2 Divide each side by '-7'. x = 0.2857142857 Simplifying x = 0.2857142857

Solution

x = {0.2857142857, 0.2857142857}

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