0=4x^2+28x+49

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


Simplifying
0 = 4x2 + 28x + 49

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

Solving
0 = 49 + 28x + 4x2

Solving for variable 'x'.

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

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

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

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

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

Factor out the Greatest Common Factor (GCF), '-1'.
-1(49 + 28x + 4x2) = 0

Factor a trinomial.
-1((7 + 2x)(7 + 2x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(7 + 2x)' equal to zero and attempt to solve: Simplifying 7 + 2x = 0 Solving 7 + 2x = 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 + 2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = 0 + -7 2x = 0 + -7 Combine like terms: 0 + -7 = -7 2x = -7 Divide each side by '2'. x = -3.5 Simplifying x = -3.5

Subproblem 2

Set the factor '(7 + 2x)' equal to zero and attempt to solve: Simplifying 7 + 2x = 0 Solving 7 + 2x = 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 + 2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = 0 + -7 2x = 0 + -7 Combine like terms: 0 + -7 = -7 2x = -7 Divide each side by '2'. x = -3.5 Simplifying x = -3.5

Solution

x = {-3.5, -3.5}

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