4r^2-r^2*3.14=

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Solution for 4r^2-r^2*3.14= equation: 


Simplifying
4r2 + -1r2 * 3.14 = 0

Reorder the terms for easier multiplication:
4r2 + -1 * 3.14r2 = 0

Multiply -1 * 3.14
4r2 + -3.14r2 = 0

Combine like terms: 4r2 + -3.14r2 = 0.86r2
0.86r2 = 0

Solving
0.86r2 = 0

Solving for variable 'r'.

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

Divide each side by '0.86'.
r2 = 0

Simplifying
r2 = 0

Take the square root of each side:
r = {0}

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