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Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

4. Probability of Disjoint and Overlapping Events

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Exercise 27 Page 698

Recall the distribution of a square of a binomial.

9a^2-42ab+49b^2

Practice makes perfect

We can find the product of this expression using polynomial identities. In this case, we have the square of a binomial.

(3a-7b)^2

ExpandNegPerfectSquare

(a-b)^2=a^2-2ab+b^2

(3a)^2-2(3a)(7b)+(7b)^2

Multiply

(3a)^2-42ab+(7b)^2

(a * b)^m=a^m* b^m

3^2a^2-42ab+7^2b^2

Calculate power

9a^2-42ab+49b^2

Subchapter links

Communicate Your Answer p.693

Monitoring Progress p.695-696