Algebra

Mathematics (NDA)

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If x = 2 then the value of x³ + 27x² + 243x + 631 is:

1211

1231

1233

1321

Explanation:

Given equation,
f(x) = x³ + 27x² + 243x + 631
⇒ x(x² + 27x+ 243) + 631
Now, put the value of x = 2
⇒ 2(2² + 27 × 2 + 243) + 631
⇒ 2 (4 + 54 + 243) + 631
⇒ 2(301) + 631 = 602 + 631 = 1233.

By: Amit Kumar

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