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Chapter 1: Q2. (page 18)

Find the value of each expression.

-4+57-23

Short Answer

Expert verified

Expression -4+57-23 results into -9

Step by step solution

01

- Order for simplification 

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

- Simplify expression inside grouping symbol 

To evaluate the value of the given expression, first expand the exponent then simplify the expression inside the parenthesis as shown below

鈭�4+57鈭�23=鈭�4+57鈭�8=鈭�4+5鈭�1=鈭�4鈭�5

03

- Subtract 5 from -4

Now, to simplify further subtract the numbers from left to right to get,

-4-5=-9

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