Basic Math Examples

$\frac{16 a^{2}}{16 a^{2 - 1}} - \frac{8}{(4 a - 1) \cdot (4 a - 1)} + \frac{1}{16 a^{2} - 1}$

Step 1

Simplify the denominator.

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Step 1.1

Multiply $4 a - 1$ by $4 a - 1$ .

$\frac{16 a^{2}}{16 a^{2 - 1}} - \frac{8}{(4 a - 1) (4 a - 1)} + \frac{1}{16 a^{2} - 1}$

Step 1.2

Raise $4 a - 1$ to the power of $1$ .

$\frac{16 a^{2}}{16 a^{2 - 1}} - \frac{8}{{(4 a - 1)}^{1} (4 a - 1)} + \frac{1}{16 a^{2} - 1}$

Step 1.3

Raise $4 a - 1$ to the power of $1$ .

$\frac{16 a^{2}}{16 a^{2 - 1}} - \frac{8}{{(4 a - 1)}^{1} {(4 a - 1)}^{1}} + \frac{1}{16 a^{2} - 1}$

Step 1.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{16 a^{2}}{16 a^{2 - 1}} - \frac{8}{{(4 a - 1)}^{1 + 1}} + \frac{1}{16 a^{2} - 1}$

Step 1.5

Add $1$ and $1$ .

$\frac{16 a^{2}}{16 a^{2 - 1}} - \frac{8}{{(4 a - 1)}^{2}} + \frac{1}{16 a^{2} - 1}$

Step 2

To write $\frac{16 a^{2}}{16 a^{2 - 1}}$ as a fraction with a common denominator, multiply by $\frac{16 a^{2} - 1}{16 a^{2} - 1}$ .

$- \frac{8}{{(4 a - 1)}^{2}} + \frac{16 a^{2}}{16 a^{2 - 1}} \cdot \frac{16 a^{2} - 1}{16 a^{2} - 1} + \frac{1}{16 a^{2} - 1}$

Step 3

To write $\frac{1}{16 a^{2} - 1}$ as a fraction with a common denominator, multiply by $\frac{16 a^{2 - 1}}{16 a^{2 - 1}}$ .

$- \frac{8}{{(4 a - 1)}^{2}} + \frac{16 a^{2}}{16 a^{2 - 1}} \cdot \frac{16 a^{2} - 1}{16 a^{2} - 1} + \frac{1}{16 a^{2} - 1} \cdot \frac{16 a^{2 - 1}}{16 a^{2 - 1}}$

Step 4

Write each expression with a common denominator of $16 (16 a^{2} - 1) a^{2 - 1}$ , by multiplying each by an appropriate factor of $1$ .

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Step 4.1

Multiply $\frac{16 a^{2}}{16 a^{2 - 1}}$ by $\frac{16 a^{2} - 1}{16 a^{2} - 1}$ .

$- \frac{8}{{(4 a - 1)}^{2}} + \frac{16 a^{2} (16 a^{2} - 1)}{16 a^{2 - 1} (16 a^{2} - 1)} + \frac{1}{16 a^{2} - 1} \cdot \frac{16 a^{2 - 1}}{16 a^{2 - 1}}$

Step 4.2

Multiply $\frac{1}{16 a^{2} - 1}$ by $\frac{16 a^{2 - 1}}{16 a^{2 - 1}}$ .

$- \frac{8}{{(4 a - 1)}^{2}} + \frac{16 a^{2} (16 a^{2} - 1)}{16 a^{2 - 1} (16 a^{2} - 1)} + \frac{16 a^{2 - 1}}{(16 a^{2} - 1) (16 a^{2 - 1})}$

Step 4.3

Reorder the factors of $(16 a^{2} - 1) (16 a^{2 - 1})$ .

$- \frac{8}{{(4 a - 1)}^{2}} + \frac{16 a^{2} (16 a^{2} - 1)}{16 a^{2 - 1} (16 a^{2} - 1)} + \frac{16 a^{2 - 1}}{16 a^{2 - 1} (16 a^{2} - 1)}$

Step 5

Combine the numerators over the common denominator.

$- \frac{8}{{(4 a - 1)}^{2}} + \frac{16 a^{2} (16 a^{2} - 1) + 16 a^{2 - 1}}{16 a^{2 - 1} (16 a^{2} - 1)}$