Basic Math Examples

Simplify (3-y)(3+y)
(3-y)(3+y)
Step 1
Expand (3-y)(3+y) using the FOIL Method.
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Step 1.1
Apply the distributive property.
3(3+y)-y(3+y)
Step 1.2
Apply the distributive property.
33+3y-y(3+y)
Step 1.3
Apply the distributive property.
33+3y-y3-yy
33+3y-y3-yy
Step 2
Simplify and combine like terms.
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Step 2.1
Simplify each term.
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Step 2.1.1
Multiply 3 by 3.
9+3y-y3-yy
Step 2.1.2
Multiply 3 by -1.
9+3y-3y-yy
Step 2.1.3
Multiply y by y by adding the exponents.
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Step 2.1.3.1
Move y.
9+3y-3y-(yy)
Step 2.1.3.2
Multiply y by y.
9+3y-3y-y2
9+3y-3y-y2
9+3y-3y-y2
Step 2.2
Subtract 3y from 3y.
9+0-y2
Step 2.3
Add 9 and 0.
9-y2
9-y2
 [x2  12  π  xdx ]