Solve 4+1/x^3+12/x^3-2=

$$\frac { 4 + 1 } { x ^ { 3 } } + 1 \frac { 2 } { x ^ { 3 } } - 2 =$$

Evaluate

$$-2+\frac{7}{x^{3}}$$

Short Solution Steps

Add 4 and 1 to get 5.

$$\frac{5}{x^{3}}+1\times \frac{2}{x^{3}}-2$$

Express 1\times \frac{2}{x^{3}} as a single fraction.

$$\frac{5}{x^{3}}+\frac{2}{x^{3}}-2$$

Since \frac{5}{x^{3}} and \frac{2}{x^{3}} have the same denominator, add them by adding their numerators. Add 5 and 2 to get 7.

$$\frac{7}{x^{3}}-2$$

To add or subtract expressions, expand them to make their denominators the same. Multiply 2 times \frac{x^{3}}{x^{3}}.

$$\frac{7}{x^{3}}-\frac{2x^{3}}{x^{3}}$$

Since \frac{7}{x^{3}} and \frac{2x^{3}}{x^{3}} have the same denominator, subtract them by subtracting their numerators.

$$\frac{7-2x^{3}}{x^{3}}$$

Expand

$$-2+\frac{7}{x^{3}}$$

Short Solution Steps

Add 4 and 1 to get 5.

$$\frac{5}{x^{3}}+1\times \frac{2}{x^{3}}-2$$

Express 1\times \frac{2}{x^{3}} as a single fraction.

$$\frac{5}{x^{3}}+\frac{2}{x^{3}}-2$$

Since \frac{5}{x^{3}} and \frac{2}{x^{3}} have the same denominator, add them by adding their numerators. Add 5 and 2 to get 7.

$$\frac{7}{x^{3}}-2$$

To add or subtract expressions, expand them to make their denominators the same. Multiply 2 times \frac{x^{3}}{x^{3}}.

$$\frac{7}{x^{3}}-\frac{2x^{3}}{x^{3}}$$

Since \frac{7}{x^{3}} and \frac{2x^{3}}{x^{3}} have the same denominator, subtract them by subtracting their numerators.

$$\frac{7-2x^{3}}{x^{3}}$$