y2 - y -72 = 0 persamaan kuadrat
Matematika
syarahauliya12193
Pertanyaan
y2 - y -72 = 0 persamaan kuadrat
1 Jawaban
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1. Jawaban Guanse
[tex] y_{1} [/tex] = (1+ akar(1-4.1.(-72))/2
= 18/2= 9
[tex] y_{1} [/tex] = (1- akar(1-4.1.(-72))/2
= -16/2= -8