Solve 1/3xquad2/xquad3/7

$$\frac { 1 } { 3 x } \quad \frac { 2 } { x } \quad \frac { 3 } { 7 }$$

Evaluate

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

Solution Steps

Multiply \frac{1}{3x} times \frac{2}{x} by multiplying numerator times numerator and denominator times denominator.

$$\frac{2}{3xx}\times \frac{3}{7}$$

Multiply \frac{2}{3xx} times \frac{3}{7} by multiplying numerator times numerator and denominator times denominator.

$$\frac{2\times 3}{3xx\times 7}$$

Cancel out 3 in both numerator and denominator.

$$\frac{2}{7xx}$$

Multiply x and x to get x^{2}.

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

Differentiate w.r.t. x

$$-\frac{4}{7x^{3}}$$