tolong yang bisa.....
a. x1 . x2 = -3 2/3
x1 + x2 = 3
b. x1 . x2 = -9
x1 + x2 = 7
c. x1 . x2 = -2
x1 + x2 = 1/2
Penjelasan dengan langkah-langkah:
a. 6x² + 20x + 18 = 0
a = 6, b = 20, c = 18
x1 . x2 = -b/a = -20/6 = -3 4/6 = -3 2/3
x1 + x2 = c/a = 18/6 = 3
b. x² + 9x + 7 = 0
a = 1, b = 9, c = 7
x1 . x2 = -b/a = -9/1 = -9
x1 + x2 = c/a = 7/1 = 7
c. 2x² + 4x + 1 = 0
a = 1, b = 4, c = 1
x1 . x2 = -b/a = -4/2 = -2
x1 + x2 = c/a = 1/2
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