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x² + 36 = 9x -2x²
3x² - 9x + 36 = 0
(bagi 3)
x² - 3x + 12 = 0
a=1, b=-3, c=12
B
x/16 = 4/x
(kali silang)
x² = 64
x² + 0x - 64= 0
a=1, b=0, c=-64
C
x/4 - 2x - 1/(x + 1) = 1
(kali 4(x+1))
x² + x - 8x² -8x - 4 = 4x + 4
-7x² -7x -4 = 4x + 4
-7x -11x -8 = 0
7x + 11x +8 = 0
a=7, b=11, c=8