Question
2. Laske lausekkeen \( 4 x+8 \) arvo, kun \( \begin{array}{llll}\text { a) } x=2 & \text { b) } x=7 & \text { c) } x=-6\end{array} \)
Ask by Brooks Rodriquez. in Finland
Jan 21,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
When \( x = 2 \), the value of \( 4x + 8 \) is 16.
When \( x = 7 \), the value is 36.
When \( x = -6 \), the value is -16.
Solution
Tarkastellaan lauseketta \( 4x + 8 \) eri \( x \)-arvoilla:
### a) Kun \( x = 2 \):
\[
4 \times 2 + 8 = 8 + 8 = 16
\]
**Vastaus:** \( 16 \)
### b) Kun \( x = 7 \):
\[
4 \times 7 + 8 = 28 + 8 = 36
\]
**Vastaus:** \( 36 \)
### c) Kun \( x = -6 \):
\[
4 \times (-6) + 8 = -24 + 8 = -16
\]
**Vastaus:** \( -16 \)
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Simplify this solution Mind Expander
Lasketaan lausekkeen \( 4x + 8 \) arvo eri x:n arvoilla. a) Kun \( x = 2 \): \[ 4(2) + 8 = 8 + 8 = 16. \] b) Kun \( x = 7 \): \[ 4(7) + 8 = 28 + 8 = 36. \] c) Kun \( x = -6 \): \[ 4(-6) + 8 = -24 + 8 = -16. \] Tulokset ovat siis: a) 16, b) 36, c) -16.
