Question

find the value of 4-6x+5x2at x= √3

Answer 1

4-6x+5x²
and,x=√3
so,
5x²-6x+4
5(√3)²-6(√3)+4
5×3×-6√3+4
15-6√3+4
19-6√3

hope this answer will help you.