w^2=8(w-7)

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Solution for w^2=8(w-7) equation:


Simplifying
w2 = 8(w + -7)

Reorder the terms:
w2 = 8(-7 + w)
w2 = (-7 * 8 + w * 8)
w2 = (-56 + 8w)

Solving
w2 = -56 + 8w

Solving for variable 'w'.

Reorder the terms:
56 + -8w + w2 = -56 + 8w + 56 + -8w

Reorder the terms:
56 + -8w + w2 = -56 + 56 + 8w + -8w

Combine like terms: -56 + 56 = 0
56 + -8w + w2 = 0 + 8w + -8w
56 + -8w + w2 = 8w + -8w

Combine like terms: 8w + -8w = 0
56 + -8w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-56' to each side of the equation.
56 + -8w + -56 + w2 = 0 + -56

Reorder the terms:
56 + -56 + -8w + w2 = 0 + -56

Combine like terms: 56 + -56 = 0
0 + -8w + w2 = 0 + -56
-8w + w2 = 0 + -56

Combine like terms: 0 + -56 = -56
-8w + w2 = -56

The w term is -8w.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8w + 16 + w2 = -56 + 16

Reorder the terms:
16 + -8w + w2 = -56 + 16

Combine like terms: -56 + 16 = -40
16 + -8w + w2 = -40

Factor a perfect square on the left side:
(w + -4)(w + -4) = -40

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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