Algebra 2 Glencoe CCSS Edition page 7 problem 23

Question

Evaluate the expression if a = - 4, b = - 0.8, c = 5, and d = 1/5.

5(d + a)/2ab^2

Answer 1

Step:1

The expression is  .

                           (Substitute )

                           (Product of two opposite signs is negative)

                           (Subtract: )

Step:2

                                 (Evaluate powers: )

                                 (Multiply: )

                                          (Multiply: )

                                                  (Divide: )

Solution:    

The  value of expression is .