254.34=28.26(r*r)

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Solution for 254.34=28.26(r*r) equation: 


Simplifying
254.34 = 28.26(r * r)

Multiply r * r
254.34 = 28.26(r2)

Solving
254.34 = 28.26r2

Solving for variable 'r'.

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

Add '-28.26r2' to each side of the equation.
254.34 + -28.26r2 = 28.26r2 + -28.26r2

Combine like terms: 28.26r2 + -28.26r2 = 0.00
254.34 + -28.26r2 = 0.00

Add '-254.34' to each side of the equation.
254.34 + -254.34 + -28.26r2 = 0.00 + -254.34

Combine like terms: 254.34 + -254.34 = 0.00
0.00 + -28.26r2 = 0.00 + -254.34
-28.26r2 = 0.00 + -254.34

Combine like terms: 0.00 + -254.34 = -254.34
-28.26r2 = -254.34

Divide each side by '-28.26'.
r2 = 9

Simplifying
r2 = 9

Take the square root of each side:
r = {-3, 3}

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