Precalculus Examples

Simplify 9/(x^2)+9/(x^3)
Step 1
To write as a fraction with a common denominator, multiply by .
Step 2
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
Tap for more steps...
Step 2.1
Multiply by .
Step 2.2
Multiply by by adding the exponents.
Tap for more steps...
Step 2.2.1
Multiply by .
Tap for more steps...
Step 2.2.1.1
Raise to the power of .
Step 2.2.1.2
Use the power rule to combine exponents.
Step 2.2.2
Add and .
Step 3
Combine the numerators over the common denominator.
Step 4
Factor out of .
Tap for more steps...
Step 4.1
Factor out of .
Step 4.2
Factor out of .
Step 4.3
Factor out of .