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9. Roots and Radicals

9. Roots and Radicals / Introduction to Radical Expressions / 문제 2

문제 2

Simplify the expression for any real number $x$ : $\sqrt{(x - 1)^{2}}$

A

$∣ x - 1 ∣$

B

$x minus 1$

C

$- (x - 1)$

D

$open paren x minus 1 close paren squared$