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Multiply $21$ times $-1$
Learn how to solve simplification of algebraic expressions problems step by step online.
$\sqrt{-21}\sqrt{2}$
Learn how to solve simplification of algebraic expressions problems step by step online. Simplify the expression (21*-)^1/22^1/2. Multiply 21 times -1. Calculate the power \sqrt{-21} using complex numbers. Calculate the square root of 2. Multiply \sqrt{21} times \sqrt{2}.