What is sqrt(2+x)*sqrt(2-x) ?

The solution to sqrt(2+x)*sqrt(2-x) is sqrt((x+2)(-x+2))

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simplify sqrt(2+x)*sqrt(2-x)

simplify

2 + x \cdot 2 - x

(x + 2) (- x + 2)

Solution steps

2 + x 2 - x

Apply radical rule:

a b = a \cdot b,

assuming

a \geq 0, b \geq 0

x + 2 - x + 2 = (x + 2) (- x + 2)

= (x + 2) (- x + 2)

15400 \cdot 4^{- 0.152004}

- (x + 2)^{2} (x - 4)^{2}

, (3)^{4}

3315 (1.645)^{2} (0.5) (0.5)

What is sqrt(2+x)*sqrt(2-x) ?
The solution to sqrt(2+x)*sqrt(2-x) is sqrt((x+2)(-x+2))