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