SOLUTION: Find the product: (3x+0.4)(3x-0.4)

Question 114200: Find the product: (3x+0.4)(3x-0.4)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression

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

---------------------
Answer:
So foils and simplifies to

In other words,

Notice how factors back to the original expression . So this verifies our answer.

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