Question

if X=(5+2√6) then find the value of 10x-x^2
Plz do it ... I will mark u as brainleist​

Answer 1

Answer:

1.

Step-by-step explanation:

Given,

x = 5 + 2√6

Putting the value of x we get:

$10x - {x}^{2} \\ \\ = 10(5 + 2 \sqrt{6} ) - {(5 + 2 \sqrt{6} })^{2} \\ \\ =( 50 + 20 \sqrt{6}) - (25 + 24 + 20 \sqrt{6} ) \\ \\ = 50 + 20 \sqrt{6} - 49 - 20 \sqrt{6} \\ \\ = 50 - 49 \\ \\ \bf = 1$