1.

3. Find the value of the polynomial 5x – 4x2 + 3 at x = 2 and x = -1​

Answer»
  1. write the equation SIMILARLY what is in the question
  2. first substitute x=2 like this 5(2)-4(2)2+3=10-16+3=-3
  3. second substitute -1 like this 5(-1)-4(-1)2+3=-5-4+3=-6


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