Question
1 Gjeni vlerën e shprehjeve për \( x=5: \) a \( 3 x+7 \) b \( 2+x^{2} \) c \( \begin{array}{l}\text { c } 4 x^{2}\end{array} \) d \( x-12 \)
Ask by Lynch Love. in Albania
Mar 18,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
- \( 3x + 7 = 22 \)
- \( 2 + x^{2} = 27 \)
- \( 4x^{2} = 100 \)
- \( x - 12 = -7 \)
Solution
**a. Evaluating \( 3x+7 \) for \( x=5 \):**
1. Substitute \( x \) with 5:
\[
3(5) + 7
\]
2. Multiply:
\[
15 + 7
\]
3. Add:
\[
22
\]
**b. Evaluating \( 2+x^{2} \) for \( x=5 \):**
1. Substitute \( x \) with 5:
\[
2+5^{2}
\]
2. Compute the square:
\[
2+25
\]
3. Add:
\[
27
\]
**c. Evaluating \( 4x^{2} \) for \( x=5 \):**
1. Substitute \( x \) with 5:
\[
4(5^{2})
\]
2. Compute the square:
\[
4(25)
\]
3. Multiply:
\[
100
\]
**d. Evaluating \( x-12 \) for \( x=5 \):**
1. Substitute \( x \) with 5:
\[
5-12
\]
2. Subtract:
\[
-7
\]
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Simplify this solution Mind Expander
Për të gjetur vlerat e shprehjeve me \( x=5 \): a) \( 3x + 7 = 3(5) + 7 = 15 + 7 = 22 \) b) \( 2 + x^{2} = 2 + (5)^{2} = 2 + 25 = 27 \) c) \( 4x^{2} = 4(5)^{2} = 4(25) = 100 \) d) \( x - 12 = 5 - 12 = -7 \) Pra, vlerat janë: a) 22, b) 27, c) 100, d) -7.
