80*80=35*35+d*d

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Solution for 80*80=35*35+d*d equation: 


Simplifying
80 * 80 = 35 * 35 + d * d

Multiply 80 * 80
6400 = 35 * 35 + d * d

Multiply 35 * 35
6400 = 1225 + d * d

Multiply d * d
6400 = 1225 + d2

Solving
6400 = 1225 + d2

Solving for variable 'd'.

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

Add '-1d2' to each side of the equation.
6400 + -1d2 = 1225 + d2 + -1d2

Combine like terms: d2 + -1d2 = 0
6400 + -1d2 = 1225 + 0
6400 + -1d2 = 1225

Add '-6400' to each side of the equation.
6400 + -6400 + -1d2 = 1225 + -6400

Combine like terms: 6400 + -6400 = 0
0 + -1d2 = 1225 + -6400
-1d2 = 1225 + -6400

Combine like terms: 1225 + -6400 = -5175
-1d2 = -5175

Divide each side by '-1'.
d2 = 5175

Simplifying
d2 = 5175

Take the square root of each side:
d = {-71.93747285, 71.93747285}

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