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If x = 2 then the value of x^(3) + 27x^(...

If `x = 2` then the value of `x^(3) + 27x^(2) + 243x + 631` is

A

1233

B

1211

C

1231

D

1321

Text Solution

AI Generated Solution

The correct Answer is:
To find the value of the expression \( x^3 + 27x^2 + 243x + 631 \) when \( x = 2 \), we will substitute \( x \) with 2 and calculate step by step. ### Step-by-step Solution: 1. **Substitute \( x = 2 \)**: \[ x^3 + 27x^2 + 243x + 631 = 2^3 + 27(2^2) + 243(2) + 631 \] 2. **Calculate \( 2^3 \)**: \[ 2^3 = 8 \] 3. **Calculate \( 27(2^2) \)**: \[ 2^2 = 4 \quad \Rightarrow \quad 27 \times 4 = 108 \] 4. **Calculate \( 243(2) \)**: \[ 243 \times 2 = 486 \] 5. **Now, combine all the calculated values**: \[ 8 + 108 + 486 + 631 \] 6. **Add them step by step**: - First, add \( 8 + 108 = 116 \) - Next, add \( 116 + 486 = 602 \) - Finally, add \( 602 + 631 = 1233 \) Thus, the value of the expression when \( x = 2 \) is **1233**. ### Final Answer: \[ \text{The value of } x^3 + 27x^2 + 243x + 631 \text{ when } x = 2 \text{ is } 1233. \]
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