Question

which statement is true about the sum √50 + √18?

A. It is rational and equal to 2
B. It is rational and equal to 8
C. It is irrational and equal to 2√2
D. It is irrational and equal to 8√2

Answer 1

try simplifying the two given roots first
sqrt(50) = sqrt(25 * 2)
because 25 times 2 = 50
then the sqrt(25) = ?
and attach the sqrt(2) onto it

Answer 2

\(\sqrt{50}+\sqrt{18}=\sqrt{25*2}+\sqrt{9*2}=\sqrt{25}\sqrt{2}+\sqrt{9}\sqrt{2}\)

Answer 3

see if that helps

Answer 4

I got √2 * 8