1-5Multiplying and Dividing Integers :
1-5Multiplying and Dividing Integers 1-5 Ex. 1. Simplify each expression.
a) 5(-4) = b) -14(-4) = -20 56 7 c) -21 (-3) = d) (-15) (5) = e) (-6) (2)(-8) = -3 24
1-5Multiplying and Dividing Integers :
1-5Multiplying and Dividing Integers Ex. 2. Evaluate y ÷(x – y) – yz + x for x = 6, y = -9, and z = –2.
-9(6 – (-9)) – (-9)(-2) + 6
-9(6 + (+9)) - (-9)(-2) + 6
-9(15) - (-9)(-2) + 6
-135 – 18 + 6
-135 + -18 + 6
-153 + 6
-147