4x(x+7)=-49

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Solution for 4x(x+7)=-49 equation:


Simplifying
4x(x + 7) = -49

Reorder the terms:
4x(7 + x) = -49
(7 * 4x + x * 4x) = -49
(28x + 4x2) = -49

Solving
28x + 4x2 = -49

Solving for variable 'x'.

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

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

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

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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