Matematika

Pertanyaan

Jika p=4, q=-5, dan r=-2, nilai (p+2q-3r)-(p-3q+2r) adalah..... a.-25 b.-15 c.15 d.25

Please Tolong Di jawab

2 Jawaban

  • (p+2q-3r)-(p-3q+2r)
    4+2(-5)-3(-2) - 4-3(-5)+2(-2)
    4+(-10)+6 - 4+15+(-4)
    =0-15
    =-15 ==>b
  • p = 4
    q = -5
    r = -2
    maka nilai ( p+2q-3r) - ( p-3q+2r) =........
    JAWAB :
    Tinggal di masukin aja nilainya
    = (4+2(-5)-3(-2)) - (4-3(-5)+2(-2))
    = (4-10+6) - (4+15-4)
    = 0-15
    = -15. B

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