Question

find the value of the polynomial 4x+x²+2x²-5 at x = 2/3?
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Answer 1

Step-by-step explanation:

hope this will help you.

Answer 2

Step-by-step explanation:

WE HAVE

P(x)= 4x + x^2 +2x^2 -5

x=2/3

SO;

3x^2 +4x -5

3 (2/3)^2 + 4×2/3 -5

3× 4/9 +8/3 -5

4/3 + 8/3 -5

= ( 4+8 -15)/3

= (12-15)/3

= -3/3

= -1