Algebra Examples

Step 1
Write as an equation.
Step 2
Simplify .
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Step 2.1
Move .
Step 2.2
Reorder and .
Step 3
Complete the square for .
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Step 3.1
Use the form , to find the values of , , and .
Step 3.2
Consider the vertex form of a parabola.
Step 3.3
Find the value of using the formula .
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Step 3.3.1
Substitute the values of and into the formula .
Step 3.3.2
Simplify the right side.
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Step 3.3.2.1
Cancel the common factor of and .
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Step 3.3.2.1.1
Factor out of .
Step 3.3.2.1.2
Cancel the common factors.
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Step 3.3.2.1.2.1
Factor out of .
Step 3.3.2.1.2.2
Cancel the common factor.
Step 3.3.2.1.2.3
Rewrite the expression.
Step 3.3.2.2
Cancel the common factor of and .
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Step 3.3.2.2.1
Factor out of .
Step 3.3.2.2.2
Cancel the common factors.
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Step 3.3.2.2.2.1
Factor out of .
Step 3.3.2.2.2.2
Cancel the common factor.
Step 3.3.2.2.2.3
Rewrite the expression.
Step 3.3.2.2.2.4
Divide by .
Step 3.4
Find the value of using the formula .
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Step 3.4.1
Substitute the values of , and into the formula .
Step 3.4.2
Simplify the right side.
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Step 3.4.2.1
Simplify each term.
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Step 3.4.2.1.1
Raise to the power of .
Step 3.4.2.1.2
Multiply by .
Step 3.4.2.1.3
Divide by .
Step 3.4.2.1.4
Multiply by .
Step 3.4.2.2
Subtract from .
Step 3.5
Substitute the values of , , and into the vertex form .
Step 4
Set equal to the new right side.
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