College

We appreciate your visit to If the value of tex b tex is 7 then what is the value of the expression tex 3b 2 25 tex A 17 B. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

If the value of [tex]$b$[/tex] is 7, then what is the value of the expression [tex]-3b^2 + 25[/tex]?

A) 17
B) 172
C) -122
D) 122

Answer :

To solve the expression [tex]\(-3b^2 + 25\)[/tex] when [tex]\(b = 7\)[/tex], follow these steps:

1. Plug in the value of [tex]\(b\)[/tex]:
Substitute [tex]\(7\)[/tex] for [tex]\(b\)[/tex] in the expression. So, the expression becomes:
[tex]\(-3 \times (7)^2 + 25\)[/tex].

2. Calculate [tex]\(b^2\)[/tex]:
First, calculate [tex]\(7^2\)[/tex]:
[tex]\(7 \times 7 = 49\)[/tex].

3. Multiply by [tex]\(-3\)[/tex]:
Next, multiply the result by [tex]\(-3\)[/tex]:
[tex]\(-3 \times 49 = -147\)[/tex].

4. Add 25:
Finally, add 25 to [tex]\(-147\)[/tex]:
[tex]\(-147 + 25 = -122\)[/tex].

Therefore, the value of the expression when [tex]\(b = 7\)[/tex] is [tex]\(-122\)[/tex].

The correct answer is C) -122.

Thanks for taking the time to read If the value of tex b tex is 7 then what is the value of the expression tex 3b 2 25 tex A 17 B. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada