(X-7)(x+7)=(x^2)+kx+m

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Solution for (X-7)(x+7)=(x^2)+kx+m equation: 


Simplifying
(X + -7)(x + 7) = (x2) + kx + m

Reorder the terms:
(-7 + X)(x + 7) = (x2) + kx + m

Reorder the terms:
(-7 + X)(7 + x) = (x2) + kx + m

Multiply (-7 + X) * (7 + x)
(-7(7 + x) + X(7 + x)) = (x2) + kx + m
((7 * -7 + x * -7) + X(7 + x)) = (x2) + kx + m
((-49 + -7x) + X(7 + x)) = (x2) + kx + m
(-49 + -7x + (7 * X + x * X)) = (x2) + kx + m
(-49 + -7x + (7X + xX)) = (x2) + kx + m

Reorder the terms:
(-49 + 7X + -7x + xX) = (x2) + kx + m
(-49 + 7X + -7x + xX) = (x2) + kx + m
-49 + 7X + -7x + xX = x2 + kx + m

Reorder the terms:
-49 + 7X + -7x + xX = kx + m + x2

Solving
-49 + 7X + -7x + xX = kx + m + x2

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '49' to each side of the equation.
-49 + 7X + -7x + 49 + xX = kx + m + 49 + x2

Reorder the terms:
-49 + 49 + 7X + -7x + xX = kx + m + 49 + x2

Combine like terms: -49 + 49 = 0
0 + 7X + -7x + xX = kx + m + 49 + x2
7X + -7x + xX = kx + m + 49 + x2

Reorder the terms:
7X + -7x + xX = 49 + kx + m + x2

Add '7x' to each side of the equation.
7X + -7x + 7x + xX = 49 + kx + m + 7x + x2

Combine like terms: -7x + 7x = 0
7X + 0 + xX = 49 + kx + m + 7x + x2
7X + xX = 49 + kx + m + 7x + x2

Reorder the terms:
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 49 + kx + m + 7x + x2 + -49 + -1kx + -1m + -7x + -1x2

Reorder the terms:
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 49 + -49 + kx + -1kx + m + -1m + 7x + -7x + x2 + -1x2

Combine like terms: 49 + -49 = 0
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 0 + kx + -1kx + m + -1m + 7x + -7x + x2 + -1x2
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = kx + -1kx + m + -1m + 7x + -7x + x2 + -1x2

Combine like terms: kx + -1kx = 0
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 0 + m + -1m + 7x + -7x + x2 + -1x2
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = m + -1m + 7x + -7x + x2 + -1x2

Combine like terms: m + -1m = 0
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 0 + 7x + -7x + x2 + -1x2
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 7x + -7x + x2 + -1x2

Combine like terms: 7x + -7x = 0
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 0 + x2 + -1x2
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-49 + 7X + -1kx + -1m + -7x + xX + -1x2 = 0

The solution to this equation could not be determined.

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