4-b^2=0

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Solution for 4-b^2=0 equation: 


Simplifying
4 + -1b2 = 0

Solving
4 + -1b2 = 0

Solving for variable 'b'.

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

Add '-4' to each side of the equation.
4 + -4 + -1b2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1b2 = 0 + -4
-1b2 = 0 + -4

Combine like terms: 0 + -4 = -4
-1b2 = -4

Divide each side by '-1'.
b2 = 4

Simplifying
b2 = 4

Take the square root of each side:
b = {-2, 2}

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