Matematika

Pertanyaan

Hasil perkalian bentuk aljabar A.10kali(2Y-10)
B.(x+5)dikali(5X-1)
C.(7-2y)dikali(2x-7)

1 Jawaban

  • a. 10(2y-10)
    = 20y - 100
    -20y = -100
    y = -100:-20
    y = 5
    b. (x-5)(5x-1)
    = 5x² - 25x -x + 5
    = 5x² - 26x + 5
    c. (7-2y) (2x-7)
    = 14x - 4xy - 49 + 14y
    = 14x + 14y - 4xy - 49

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