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# Identity Proof

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## Amanda Fernandez

on 5 December 2014

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#### Transcript of Identity Proof

Identity Proof
Numerical Proof:
Identity
Mareline Ramirez and Amanda Fernandez
______________________________
Algebraic Proof:
First use distributive property, multiplying the binomials first.

Combine like terms!

Use distributive property again.

Use numerical proof to prove the answer.
1.
Lets substitute a to 6 and b to 9.
a=6
b=9

2.
Get rid of the exponents first to make it easier to solve the problem.
(36+81)(6•9)(36-81)=(7776•9-6•59,049)
3.
Solve the expression with each parenthesis to simplify
(117)(54)(-45)=(69,984-354,294)
Solve the equation now!
-284,310= -284,310 √
The identity proof works!
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