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Solve for $b$ . $\newline$ $121 = b^2$ $\newline$ $b =$ _ or _

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Solve equations using square roots

Full solution

Q. Solve for

b

.

\newline

121 = b^2

\newline

b =

_____ or _____

Recognize Equation Format: Recognize the equation format and identify the operation needed. $\newline$ $121 = b^2$ $\newline$ We need to find the square root of $121$ to solve for $b$ .
Calculate Square Root: Calculate the square root of $121$ . $\sqrt{121} = 11$ Since squaring a number results in a positive number, $b$ can be either positive or negative.
Write Possible Values: Write down the possible values for $b$ . $b = 11$ or $b = -11$ This accounts for both the positive and negative square roots.

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