Basic Math Examples

Combine (7zy)/(z^2-y^2)+(3z-y)/(z+y)
Step 1
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Step 2
To write as a fraction with a common denominator, multiply by .
Step 3
Simplify terms.
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Step 3.1
Multiply by .
Step 3.2
Combine the numerators over the common denominator.
Step 4
Simplify the numerator.
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Step 4.1
Expand using the FOIL Method.
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Step 4.1.1
Apply the distributive property.
Step 4.1.2
Apply the distributive property.
Step 4.1.3
Apply the distributive property.
Step 4.2
Simplify and combine like terms.
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Step 4.2.1
Simplify each term.
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Step 4.2.1.1
Multiply by by adding the exponents.
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Step 4.2.1.1.1
Move .
Step 4.2.1.1.2
Multiply by .
Step 4.2.1.2
Rewrite using the commutative property of multiplication.
Step 4.2.1.3
Multiply by .
Step 4.2.1.4
Rewrite using the commutative property of multiplication.
Step 4.2.1.5
Multiply by by adding the exponents.
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Step 4.2.1.5.1
Move .
Step 4.2.1.5.2
Multiply by .
Step 4.2.1.6
Multiply by .
Step 4.2.1.7
Multiply by .
Step 4.2.2
Subtract from .
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Step 4.2.2.1
Move .
Step 4.2.2.2
Subtract from .
Step 4.3
Subtract from .
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Step 4.3.1
Move .
Step 4.3.2
Subtract from .