Understanding Binomial Multiplication

The video tutorial explains how to multiply and simplify the square of a binomial, specifically the expression (2a - 11)^2. It emphasizes the importance of not taking shortcuts by simply squaring each term. Instead, it demonstrates the process of multiplying two binomials through distribution, resulting in four products. The tutorial also contrasts the FOIL method with repeated distribution, ultimately combining like terms to achieve the simplified expression 4a^2 - 44a + 121. The video concludes by reinforcing the correct approach to squaring binomials.

What is the first step in squaring a binomial like (2a - 11)?

• Square each term individually

• Multiply the binomial by itself

• Add the terms together

• Use the FOIL method directly

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CCSS.7.EE.A.1

When distributing terms in the binomial (2a - 11), how many products are formed?

• Two

• Three

• Four

• Five

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CCSS.HSA.APR.A.1

What does the acronym FOIL stand for in binomial multiplication?

• First, Outer, Inverse, Last

• First, Outer, Inner, Least

• First, Only, Inner, Last

• First, Outer, Inner, Last

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CCSS.HSA.APR.A.1

What is the result of multiplying 2a by 2a?

• 2a

• 4a

• 4a^2

• 8a^2

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the product of -11 times -11?

• 121

• -121

• 0

• 11

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CCSS.7.EE.A.1

How do you combine the terms -22a and -22a?

• -44a

• 44a

• 22a

• 0

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CCSS.HSA.APR.A.1

What is the result of multiplying -11 by 2a?

• -11a

• 11a

• 22a

• -22a

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CCSS.HSA.APR.C.4

What is the simplified form of (2a - 11)^2?

• 4a^2 - 22a + 121

• 4a^2 - 44a + 121

• 4a^2 + 44a + 121

• 4a^2 + 22a + 121

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CCSS.HSA.APR.C.4

Why is it important not to take shortcuts when squaring a binomial?

• It ensures the correct product

• It is easier

• It is a rule

• It saves time

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CCSS.HSA.APR.C.4

What is the common mistake when squaring a binomial?

• Squaring each term separately

• Multiplying the terms

• Using the FOIL method

• Adding the terms

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CCSS.HSA.APR.C.4