SOLUTION: Expand and if necessary simplify questions: a. (2a-1)^2 b. (x+11)(x-4) c. (2x-3)(4x-7)

Question 170429: Expand and if necessary simplify questions:
a. (2a-1)^2
b. (x+11)(x-4)
c. (2x-3)(4x-7)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'll do the first two to get you started

# 1

Start with the given expression.

Expand. Remember something like .

Now let's FOIL the 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.

So FOILs to .

In other words, .

# 2

Start with the given expression.

Now let's FOIL the 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.

So FOILs to .

In other words, .

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