Matematika

Pertanyaan

tentukan kpk dalam bentuk aljabar dari
a.3 dan 7a
b.2a dan 3a²
c.3p dan 12p
d.18ax dan 3x²
e.6ab dan 9abp
f.8XY²,7pqr²,dan 24xyz
g.3pa,7pqr²,dan 10p²Q²R²
h.15klm,30klm²,dan45K²L²M
i.2ab,3b²qr,dan 5a²b
j.3pqr,4p²qr,dan7pq²r²

1 Jawaban

  • a) 3 = 3
    7a = 7 × a
    kpk = 3 × 7 × a = 21a

    b) 2a = 2 × a
    3a² = 3 × a²
    kok = 2 × 3 × a² = 6a²

    c) 3p = 3 × p
    12p = 2² × 3 × p
    kpk = 2² × 3 × p = 12p

    d) 18ax = 2 × 3² × a × X
    3x² = 3 × X²
    kpk = 2 × 3² × a × X² = 18ax²

    e) 6ab = 2 × 3 × a × b
    9abp = 3² × a × b × p
    kpk = 2 × 3² × a × b × p = 18abp

    f) 8xy² = 2³ × x × y²
    7pqr² = 7 × p × q × r²
    24xyz = 2³ × 3 × x × y × z
    kpk = 2³ × 3 × 7 × x × y² × z × p × q × r²
    = 168xy²zpqr²

    g) 3pa = 3 × p × a
    7pqr² = 7 × p × q × r²
    10p²q²r² = 2 × 5 × p² × q² × r²
    kpk = 2 × 3 × 5 × 7 × a × p² × q² × r²
    = 210ap²q²r²

    h) 15klm = 3 × 5 × k × l × m
    30klm² = 2 × 3 × 5 × k × l × m²
    45k²l²m = 3² × 5 × k² × l² × m
    kpk = 2 × 3² × 5 × k² × l² × m²
    = 90k²l²m²

    i) 2ab = 2 × a × b
    3b²qr = 3 × b² × q × r
    5a²b = 5 × a² × b
    kpk = 2 × 3 × 5 × a² × b² × q × r
    = 30a²b²qr

    j) 3pqr = 3 × p × q × r
    4p²qr = 2² × p² × q × r
    7pq²r² = 7 × p × q² × r²
    kpk = 2² × 3 × 7 × p² × q² × r²
    = 84p²q²r²

Pertanyaan Lainnya