SOLUTION: Solve. (7p+6q)to the 2nd power

Question 112669: Solve.
(7p+6q)to the 2nd power
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given expression

Expand

Remember, when you FOIL an expression, you follow this procedure:

Multiply the First terms:

Multiply the Outer terms:

Multiply the Inner terms:

Multiply the Last terms:

Now collect every term to make a single expression

Now combine like terms

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Answer:
So foils and simplifies to

In other words,

Notice how factors back to the original expression (if you need help with factoring, check out this solver). So this verifies our answer.

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