What is the value of 9x^2 + 13x – 15, if x = 2

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Laynor asked Jun 23, 2022

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3 votes

What is the value of 9x^2 + 13x – 15, if x = 2

Mathematics
high-school

Laynor asked Jun 23, 2022

by Laynor

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2 Answers

11 votes

Answer:

9(2)×2+13(2)-15

18×2+26-15

36+11

47 is your answer ☺️☺️☺️

Jbkkd answered Jun 24, 2022

by Jbkkd

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15 votes

Explanation:

Given,

$9 {x}^(2) + 13x - 15$

and

x = 2

Substitute x = 2 into expression.

$9 {x}^(2) + 13x - 15 = 9( {2}^(2) ) + 13(2) - 15 \\ = 9(4) + 26 - 15 \\ = 36 + 26 - 15 \\ = 62 - 15 \\ = 47$

Shubham Pandey answered Jun 30, 2022

by Shubham Pandey

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