Question

if x = 1/ 2 - √3 find the value of x² - 4x + 1​

Answer 1

Answer:

x=0

Step-by-step explanation:

x=1/(2-√3)

=(2+√3)/(2-√3)(2+√3)

=(2+√3)/(2)²-(√3)² {(a+b)(a-b)=a²-b²}

=(2+√3)4-3

=(2+√3)/1

x=2+√3

x²-4x+1​=(2+√3)²-4×(2+√3)+1

={(2)²+(√3)²+2×2×√3-8-4√3+1  {(a+b)²=a²+b²+2ab}

={4+3+4√3-8-4√3+1}

=7+4√3-8-4√3+1

=-1+4√3-4√3+1

=0+0

=0

x²-4x+1=0