Question

11. If x = (root 3+1)÷2, find the value of 4x^3 + 2x^2- 8x+7​

Answer 1

Answer:

5

Step-by-step explanation:

x$= (\sqrt{3+1})/2$= 1

$value = 4X1^{3} +2X1^{2} -8X 1+7 =5$