Solve 2^2-7a-12diva-4

$$2 ^ { 2 } - 7 a - 12 \div a - 4$$

Evaluate

$$-7a-\frac{12}{a}$$

Short Solution Steps

Calculate 2 to the power of 2 and get 4.

$$4-7a-\frac{12}{a}-4$$

Subtract 4 from 4 to get 0.

$$-7a-\frac{12}{a}$$

To add or subtract expressions, expand them to make their denominators the same. Multiply -7a times \frac{a}{a}.

$$\frac{-7aa}{a}-\frac{12}{a}$$

Since \frac{-7aa}{a} and \frac{12}{a} have the same denominator, subtract them by subtracting their numerators.

$$\frac{-7aa-12}{a}$$

Do the multiplications in -7aa-12.

$$\frac{-7a^{2}-12}{a}$$

Factor

$$\frac{-7a^{2}-12}{a}$$