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Chapter 1: Q20. (page 9)

Find the value of each expression

262-9

Short Answer

Expert verified

Value of262-9 is 54

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 simplify the expression inside the parenthesis by expand the exponent and subtract 9 from it as shown below

262鈭�9=236鈭�9=227

03

- Multiply 2 with 27

Now, to simplify further multiply the numbers to get

227=54

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