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y=(2x+3) (x-1) (x-4)

Sagot :

First equate to zero
Y = (2x + 3) (x-1) (x-4)
0 = (2x + 3) (x-1) (x-4)

Find the x-intercepts:
2x + 3 = 0             x-1=0                       x-4=0
2x = -3                  x = 1                       x = 4
 2      2
  x = -3/2

The x-intercepts:  -3/2, 1, 4