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)

2.3 \cdot 1 0^{- 10}

- 3 x^{2} (6 - x)^{2}

12 e^{- 2 t} \cdot (3 e^{2 t} + 6 t e^{2 t})

e^{- 2 t} u (- t)

3.25 x 1 0^{- 1}

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