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Popular >

simplify sqrt(21-x)(+sqrt(21-x))

Solution

simplify

21 - x (+ 21 - x)

Solution

- x + 21

Solution steps

21 - x (21 - x)

Apply radical rule:

a a = a

- x + 21 - x + 21 = 21 - x

= 21 - x

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Frequently Asked Questions (FAQ)

What is sqrt(21-x)(+sqrt(21-x)) ?
The solution to sqrt(21-x)(+sqrt(21-x)) is -x+21