Pre-Algebra Examples

Solve for x 9x^2+25=30x
Step 1
Subtract from both sides of the equation.
Step 2
Factor using the perfect square rule.
Tap for more steps...
Step 2.1
Rearrange terms.
Step 2.2
Rewrite as .
Step 2.3
Rewrite as .
Step 2.4
Check that the middle term is two times the product of the numbers being squared in the first term and third term.
Step 2.5
Rewrite the polynomial.
Step 2.6
Factor using the perfect square trinomial rule , where and .
Step 3
Set the equal to .
Step 4
Solve for .
Tap for more steps...
Step 4.1
Add to both sides of the equation.
Step 4.2
Divide each term in by and simplify.
Tap for more steps...
Step 4.2.1
Divide each term in by .
Step 4.2.2
Simplify the left side.
Tap for more steps...
Step 4.2.2.1
Cancel the common factor of .
Tap for more steps...
Step 4.2.2.1.1
Cancel the common factor.
Step 4.2.2.1.2
Divide by .
Step 5
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
Mixed Number Form: