Question
3.124 Trekk saman. Set deretter \( x=2 \) og \( y=-1 \) inn i svaret, og rekn ut. a) \( 2 x+x+2 y-y \) b) \( 4 x+2 y-2 x-y \)
Ask by Hills Sandoval. in Norway
Jan 13,2025
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Answer
a) 5
b) 3
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Beyond the Answer
For å løse oppgavene, kan vi først forenkle uttrykkene. a) \( 2x + x + 2y - y = 2(2) + (2) + 2(-1) - (-1) = 4 + 2 - 2 + 1 = 5 \) b) \( 4x + 2y - 2x - y = 4(2) + 2(-1) - 2(2) - (-1) = 8 - 2 - 4 + 1 = 3 \) Så svaret for a) er 5 og for b) er 3!