Matematika

Pertanyaan

perkalian aljabar tlong y pake cra
1.(1/2 p - 5)(2p-8)
2.(30-5)(3p-5)
3.(x+2)(x-20)
4.(3y-1)(3y+1)

1 Jawaban

  • NOMOR 1
    (1/2p - 5)(2p - 8)
    p² - 4p - 10p + 40
    p² - 14p + 40

    NOMOR 2
    (30 - 5)(3p - 5)
    90p - 150 - 15p + 25
    75p - 125

    NOMOR 3
    (x + 2)(x - 20)
    x² - 20x + 2x - 40
    x² - 18x - 40

    NOMOR 4
    (3y - 1)(3y + 1)
    9y² + 3y - 3y - 1
    9y² - 1

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