The value of x are 26 and 16.
What is an equation?
An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra .
According to question
[tex](x - 21)^{2}[/tex] = 25
(x-21) = ± 5
x-21 = +5 and x-21 = -5
x = 5+21 and x = -5+21
x= 26 and x = 16
Hence, value of x are 26 and 16 .
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