Question

Rationalize The Denominator Of 3- Root 5 +X By X-4

Answer 1

$x - 4 \div 3 \sqrt{5} + x$

=( X - 4 / 3√5 + X ) × (3√5 - X / 3√5 - X)

=(X -4)(3√5 - X) / (3√5)^2 - (X)^2

= (X-4)(3√5 - X) / 45 - X^2

hope it helps!