4x+40=x^2+7x+49

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Solution for 4x+40=x^2+7x+49 equation:


Simplifying
4x + 40 = x2 + 7x + 49

Reorder the terms:
40 + 4x = x2 + 7x + 49

Reorder the terms:
40 + 4x = 49 + 7x + x2

Solving
40 + 4x = 49 + 7x + x2

Solving for variable 'x'.

Reorder the terms:
40 + -49 + 4x + -7x + -1x2 = 49 + 7x + x2 + -49 + -7x + -1x2

Combine like terms: 40 + -49 = -9
-9 + 4x + -7x + -1x2 = 49 + 7x + x2 + -49 + -7x + -1x2

Combine like terms: 4x + -7x = -3x
-9 + -3x + -1x2 = 49 + 7x + x2 + -49 + -7x + -1x2

Reorder the terms:
-9 + -3x + -1x2 = 49 + -49 + 7x + -7x + x2 + -1x2

Combine like terms: 49 + -49 = 0
-9 + -3x + -1x2 = 0 + 7x + -7x + x2 + -1x2
-9 + -3x + -1x2 = 7x + -7x + x2 + -1x2

Combine like terms: 7x + -7x = 0
-9 + -3x + -1x2 = 0 + x2 + -1x2
-9 + -3x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-9 + -3x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(9 + 3x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(9 + 3x + x2)' equal to zero and attempt to solve: Simplifying 9 + 3x + x2 = 0 Solving 9 + 3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-9' to each side of the equation. 9 + 3x + -9 + x2 = 0 + -9 Reorder the terms: 9 + -9 + 3x + x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 3x + x2 = 0 + -9 3x + x2 = 0 + -9 Combine like terms: 0 + -9 = -9 3x + x2 = -9 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = -9 + 2.25 Reorder the terms: 2.25 + 3x + x2 = -9 + 2.25 Combine like terms: -9 + 2.25 = -6.75 2.25 + 3x + x2 = -6.75 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = -6.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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