x² - 1 = 0may you answer it?
Answer (1)
Answer:x=±1Solve using quadratic equation x= -b±√b²-4ac/2a x=0±√0²-4(1)(-1)/2(1)x=±2/2 (x=2/2, x=-2/2)x=±1 (x=1, x=-1)
Answer:x=±1Solve using quadratic equation x= -b±√b²-4ac/2a x=0±√0²-4(1)(-1)/2(1)x=±2/2 (x=2/2, x=-2/2)x=±1 (x=1, x=-1)
