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Chapter 1: Q6. (page 30)

Evaluate each expression if a=-4 and b=1.5

-6b

Short Answer

Expert verified

The absolute value of expression inside bracket is9

Step by step solution

01

Step1- Order of evaluation

To evaluate an expression involving one operation, follow the below order of operation

  • First replace the algebraic expression inside the grouping symbols like matrix brackets ( ) with numeric expression
  • Perform multiplication
  • Evaluate the absolute value
02

Step2- Simplify the expression inside grouping symbol

Evaluate the value of given expression, simply the expression inside the bracket and then find the absolute value of expression as shown below

|鈭�6b|=|鈭�6脳1.5|=|鈭�9|

03

Step3-Find the absolute value of expression inside the bracket

The absolute value of -9=9

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