Solve sqrt(21) * sqrt(7) * sqrt(3) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\sqrt{21}\times\sqrt{7}\times\sqrt{3}$$

Evaluate

$21$

Solution Steps

Factor $21=7\times 3$. Rewrite the square root of the product $\sqrt{7\times 3}$ as the product of square roots $\sqrt{7}\sqrt{3}$.

$$\sqrt{7}\sqrt{3}\sqrt{7}\sqrt{3}$$

Multiply $\sqrt{7}$ and $\sqrt{7}$ to get $7$.

$$7\sqrt{3}\sqrt{3}$$

Multiply $\sqrt{3}$ and $\sqrt{3}$ to get $3$.

$$7\times 3$$

Multiply $7$ and $3$ to get $21$.

$$21$$

Factor

$3\times 7$