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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

8. An Introduction to Equations

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Exercise 11 Page 56

Remember that a negative number multiplied by another negative number gives a positive number.

False

Practice makes perfect

Consider the given equation. 4 (- 4)÷(- 8)6=- 3 + 5(3) To determine if this equation is true, false, or open, we need to simplify it by following the order of operations.

4 (- 4)÷(- 8)6=- 3 + 5(3)

a÷ b=a/b

4 (- 4)/(- 8) 6? =- 3 + 5(3)

(- a)b = - ab

- 4 *4/-8 * 6? =- 3 + 5(3)

Multiply

- 16/-48? =- 3 + 15

- a/- b=a/b

16/48? =- 3 + 15

a/b=.a /16./.b /16.

1/3? =- 3 + 15

Add terms

1/3≠12

Since the left-hand side and the right-hand side are not equal, the equation is false.

Subchapter links

Lesson Check p.56

Practice and Problem-Solving Exercises p.56-58

Standardized Test Prep p.58

Mixed Review p.58