Question

Please solve with all steps ​

Answer 1

Step-by-step explanation:

plz mark it as brainliest

Answer 2

Step-by-step explanation:

if x=√3+1/2

4x^3+2x^2-8x+7

=4(√3+1/2)^3+2(√3+1/2)^2-8(√3+1/2)+7

=(3√3+1/2)+(4/2)-(4√3+4)

=3√3+1/2+4/2-4√3-4

=-5√3-4/2