Asked by josh
                For the next three problems, evaluate each expression if x = −2, y = 4, and z = −3. 
  
(4 − 2x)−2
(y − z)−3
(x − 5y)0
            
        (4 − 2x)−2
(y − z)−3
(x − 5y)0
Answers
                    Answered by
            Steve
            
    (4-2(-2))-2 = (4-(-4)) = 4+4) = 8
(4-(-3))-3 = (4+3)-3 = 4+3-3 = 4
(-2-5(4))0 = 0
(anything times 0 = 0)
    
(4-(-3))-3 = (4+3)-3 = 4+3-3 = 4
(-2-5(4))0 = 0
(anything times 0 = 0)
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