Question Details

The value of  4 3 - 7 2 + ( 16 4 ) 2 - 4 + 9 × 1 = ______

Options

A

33

B

44

C

42

D

36

Show Answer

Correct Answer :

Option D

36

Solution :

The correct option is 36.

To find the value of the given mathematical expression, we will simplify each term step-by-step following the standard order of operations (PEMDAS/BODMAS).

The given expression is:

4 3 - 7 2 + ( 16 4 ) 2 - 4 + 9 × 1

Step 1: Simplify terms inside parentheses
We first calculate the division inside the parentheses:
16 4 = 4
Substituting this back, the expression becomes:
4 3 - 7 2 + 4 2 - 4 + 9 × 1

Step 2: Evaluate the exponents (powers)
Now we calculate the value of each exponential term:
1. First term: 43 = 4 × 4 × 4 = 64
2. Second term: 72 = 7 × 7 = 49
3. Third term: 42 = 4 × 4 = 16
Substituting these values back into the expression, we get:
64 - 49 + 16 - 4 + 9 × 1

Step 3: Perform multiplication
Next, evaluate the multiplication at the end of the expression:
9 × 1 = 9
So, the expression becomes:
64 - 49 + 16 - 4 + 9

Step 4: Perform addition and subtraction from left to right
Let us perform the calculations sequentially from left to right:
1. 64 - 49 = 15
The expression now is: 15 + 16 - 4 + 9
2. 15 + 16 = 31
The expression now is: 31 - 4 + 9
3. 31 - 4 = 27
The expression now is: 27 + 9
4. 27 + 9 = 36

Thus, the final value of the expression is 36.

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