Question

x is equal to 7 + 2 root 10 then find the value of root x + 1 upon root x

Answer 1

Step-by-step explanation:

Square root of 7 + 2√10

=√(7+2√10)

= √[5+2+2×√(5×2)] we can write 7=5+2 & 2√10 =2×√(5×2)

So by using (a+b)^2 = a^2+b^2 +2ab

= √[ (√5)^2 +(√2)^2+√(2×5)]

= √[(√5+√2)^2]

= √5+√2 because √(a^2) = a

I HOPE THIS WILL HELP