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sama kan aj ya
ax² + bx + c = 0
x² - x - 72 = 0
jadi adk hrus cri
a x b = -72
a + b = -1
jadi angka yang pas itu pasti 9 sama -8 ya kan
jadi pemfaktorannya (x+9)(x-8)= 0
maka x= -9 dan x= 8