Chapter ISG, Problem 1.2.8P

To determine

Find the correct value of the expression and if there are any errors,decribe them

Answer to Problem 1.2.8P

  $30$

Explanation of Solution

Given information:

  $\begin{array}{l}{6}^2-5\times 2+2\left(9-7\right)\\ 6^2-5\times 2+2\left(2\right)\\ 36-5\times 2+2\left(2\right)\\ 36-10+4\\ 36-14\\ 22\\ \end{array}$

Formula used:

To simplify use the BODMAS rule

Calculation:

  $6^2-5\times 2+2\left(9-7\right)$

Firstly Subtract the bracket term

  $6^2-5\times 2+2\left(2\right)$

To solve the power of 6

  $36-5\times 2+2\left(2\right)$

Multiplication the 5 to 2 and 2 to 2

  $36-10+4$

Adding the 36 and 4

  $40-10$

Hence, on subtracting, the final answer is-

  $30$

Conclusion-

The Final answer is

In the given question by mistakely use the - sign in the replace of + sign.