What is sqrt(x-7)*sqrt(x+7) ?

The solution to sqrt(x-7)*sqrt(x+7) is sqrt((x-7)(x+7))

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simplify sqrt(x-7)*sqrt(x+7)

simplify

x - 7 \cdot x + 7

(x - 7) (x + 7)

Solution steps

x - 7 x + 7

Apply radical rule:

a b = a \cdot b,

assuming

a \geq 0, b \geq 0

x - 7 x + 7 = (x - 7) (x + 7)

= (x - 7) (x + 7)

2. 8^{- 3}

(\frac{π}{2})^{- 2}

\frac{e ^{- 6 - 2 l n (x)}}{e ^{6 x}}

e^{- x} \times (- e^{x})

What is sqrt(x-7)*sqrt(x+7) ?
The solution to sqrt(x-7)*sqrt(x+7) is sqrt((x-7)(x+7))