Question

√5+1/√5-1 =x
show that x²-x-1=0​

Answer 1

X=√√{(5+1)/(√5−1)}

=√{(√5+1)(√5+1)/(√5+1)(√5–1)} (multiply by (√5+1)

=√{(√5+1)^2/4}

=(√5+1)/2.