Subtract. Simplify, if possible.
-$$\frac { 9 } { 3 x ^ { 2 } } - \frac { 7 } { 3 x ^ { 2 } }$$
A) $\frac { 2 } { 6 x ^ { 4 } }$

B) $\frac { 3 } { 2 x ^ { 2 } }$

C) $\frac { 2 } { 3 x ^ { 2 } }$

D) 2

Question

Subtract. Simplify, if possible.
-$$\frac { 9 } { 3 x ^ { 2 } } - \frac { 7 } { 3 x ^ { 2 } }$$
A) $\frac { 2 } { 6 x ^ { 4 } }$

B) $\frac { 3 } { 2 x ^ { 2 } }$

C) $\frac { 2 } { 3 x ^ { 2 } }$

D) 2

Quizplus · Accepted Answer

The two fractions have the same denominator, so we can simply subtract the numerators and keep the denominator:
$$\frac { 9 } { 3 x ^ { 2 } } - \frac { 7 } { 3 x ^ { 2 } } = \frac{9-7}{3x^2} = \frac{2}{3x^2}$$
Therefore, the answer is choice C.

Subtract Simplify, If Possible 93x2−73x2\frac { 9 } { 3 x ^ { 2 } } - \frac { 7 } { 3 x ^ { 2 } }3x29​−3x27​

Subtract Simplify, If Possible $\frac { 9 } { 3 x ^ { 2 } } - \frac { 7 } { 3 x ^ { 2 } }$