Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Discover a wealth of knowledge from experts across different disciplines on our comprehensive Q&A platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

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
Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.