10b^2+9=649

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Solution for 10b^2+9=649 equation: 


Simplifying
10b2 + 9 = 649

Reorder the terms:
9 + 10b2 = 649

Solving
9 + 10b2 = 649

Solving for variable 'b'.

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

Add '-9' to each side of the equation.
9 + -9 + 10b2 = 649 + -9

Combine like terms: 9 + -9 = 0
0 + 10b2 = 649 + -9
10b2 = 649 + -9

Combine like terms: 649 + -9 = 640
10b2 = 640

Divide each side by '10'.
b2 = 64

Simplifying
b2 = 64

Take the square root of each side:
b = {-8, 8}

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