4w^2+3w+16=7

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Solution for 4w^2+3w+16=7 equation:


Simplifying
4w2 + 3w + 16 = 7

Reorder the terms:
16 + 3w + 4w2 = 7

Solving
16 + 3w + 4w2 = 7

Solving for variable 'w'.

Reorder the terms:
16 + -7 + 3w + 4w2 = 7 + -7

Combine like terms: 16 + -7 = 9
9 + 3w + 4w2 = 7 + -7

Combine like terms: 7 + -7 = 0
9 + 3w + 4w2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
2.25 + 0.75w + w2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + 0.75w + -2.25 + w2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + 0.75w + w2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + 0.75w + w2 = 0 + -2.25
0.75w + w2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
0.75w + w2 = -2.25

The w term is 0.75w.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75w + 0.140625 + w2 = -2.25 + 0.140625

Reorder the terms:
0.140625 + 0.75w + w2 = -2.25 + 0.140625

Combine like terms: -2.25 + 0.140625 = -2.109375
0.140625 + 0.75w + w2 = -2.109375

Factor a perfect square on the left side:
(w + 0.375)(w + 0.375) = -2.109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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