(a-b) (4a-74a-7) apa isinya
Matematika
1am23
Pertanyaan
(a-b) (4a-74a-7) apa isinya
2 Jawaban
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1. Jawaban eripane05
(a-b) (4a-74a-7)
= 4a(a) + (-74a(a) ) +a(-7) +(-b(4a) + (-b)(-74a) + (-b)(-7)
= 4a² -74a² -7a-4ab +74ab +7b
= -70a²+ 70ab -7a+7b -
2. Jawaban intan1608
(a-b) (4a-74a-7) = ((a.4a) - (a.74a) - (a.7)) - ((b.4a) - (b.74a) - (b.-7)) = ((4a² - 74a² - 7a )) - ((4ab -74ab - (-7b )) = (-70a² - 7a) + (70ab + 7b) = -70a² - 7a + 70ab + 7b