Maharashtra State BoardSSC (English Medium) 9th Standard
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Write the Correct Alternative Answer for the Following Question. - Algebra

MCQ

Write the correct alternative answer for  the following question.

When x = -1 , what is the value of the polynomial 2x+ 2x ? 

Options

  • 4

  • 2

  • -2

  • -4

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Solution

Let p(x) = 2x+ 2x 
∴ p(−1) = 2 × (−1)3 + 2 × (−1) = 2 × (−1) − 2 = −2 − 2 = −4
Thus, the value of the polynomial when x = −1 is −4.

  Is there an error in this question or solution?
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APPEARS IN

Balbharati Mathematics 1 Algebra 9th Standard Maharashtra State Board
Chapter 3 Polynomials
Problem Set 3 | Q 1.07 | Page 55
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