Answered

Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Join our Q&A platform to get precise answers from experts in diverse fields and enhance your understanding. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Evaluate [tex]\( 2x^2 - 1 \)[/tex] when [tex]\( x = 3 \)[/tex].

A. 5
B. 25
C. 17
D. 35

Sagot :

GinnyAnswer
To evaluate the expression [tex]\(2x^2 - 1\)[/tex] when [tex]\(x = 3\)[/tex], follow these steps:

1. Substitute [tex]\(x = 3\)[/tex] into the expression:
[tex]\[ 2(3)^2 - 1 \][/tex]

2. Calculate the exponent:
[tex]\[ 3^2 = 9 \][/tex]

3. Multiply by 2:
[tex]\[ 2 \cdot 9 = 18 \][/tex]

4. Subtract 1 from the result:
[tex]\[ 18 - 1 = 17 \][/tex]

So, the value of [tex]\(2x^2 - 1\)[/tex] when [tex]\(x = 3\)[/tex] is [tex]\(\boxed{17}\)[/tex]. Hence, the correct answer is:

C. 17
We appreciate your visit. Hopefully, the answers you found were beneficial. Don't hesitate to come back for more information. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.