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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

5. Quadratic Inequalities

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Exercise 80 Page 213

Be careful of negatives when distributing.

8y-12z

Practice makes perfect

We will begin simplifying by distributing the - 4 to the terms inside the parentheses.

- 4(- 2y+3z)

Distribute - 4

(-4)(- 2y)+(- 4)3z

MultNegNegTwoPar

(- a)(- b)=a* b

8y+(- 4)3z

(- a)b = - ab

8y-12z

Since 8y and - 12z are not like terms, the expression cannot be simplified further.

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Exercises p.210-213