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Big Ideas Math Integrated I, 2016 View details

2. Solving Inequalities Using Addition or Subtraction

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Exercise 39 Page 66

When multiplying real numbers, the product will be positive if the signs are the same and will be negative if the signs are different.

- 63

Practice makes perfect

When multiplying real numbers, the product will be positive if the signs are the same, and it will be negative if the signs are different. cc Same Sign & Different Signs (+)(+)=(+) & (+)(-)=(-) (-)(-)=(+) & (-)(+)=(-) In our case, one number is positive and one number is negative, so the product will be negative.

7*(- 9)

MultPosNeg

a(- b)=- a * b

- 7 * 9

Multiply

- 63

The product is - 63.