Precalculus Examples

$7 \cdot (10 \log (10^{7}))$

Step 1

Use logarithm rules to move $7$ out of the exponent.

$7 \cdot (10 (7 \log (10)))$

Step 2

Logarithm base $10$ of $10$ is $1$ .

$7 \cdot (10 (7 \cdot 1))$

Step 3

Multiply $7$ by $1$ .

$7 \cdot (10 \cdot 7)$

Step 4

Multiply $7 (10 \cdot 7)$ .

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Step 4.1

Multiply $10$ by $7$ .

$7 \cdot 70$

Step 4.2

Multiply $7$ by $70$ .

$490$