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$(P-4)^2=16$

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Powers with decimal and fractional bases

Full solution

Q.

(P-4)^2=16

Calculate square root: Calculate the square root of $16$ to find the possible values of $(P-4)$ . $\sqrt{16} = 4$ or $-4$
Set up equations: Set up two equations based on the square root results. $\newline$ $(P-4) = 4$ and $(P-4) = -4$
Solve first equation: Solve the first equation $(P-4) = 4$ . $\newline$ $P - 4 = 4$ $\newline$ $P = 4 + 4$ $\newline$ $P = 8$
Solve second equation: Solve the second equation $(P-4) = -4$ . $P - 4 = -4$ $P = -4 + 4$ $P = 0$

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