Question

which statement is true about the sum square root of 50 square root of 18? it is rational and equal to 2. it is rational and equal to 8. it is irrational and equal to 2square root of 2. it is irrational and equal to 8square root of 2.

Answer 1

Hello,

√50+√18=5√2+3√2=8√2
it is irrational and equal to 8square root of 2

Answer D

Answer 2

The correct answer is "it is irrational and equal to 8 square root of 2"

Explanation:

x=√50 +√ 18

x=√(25*2) +√(9*2)

By the Radical Properties of Multiplication

x=(√25*√2) + (√9*√2)

x=5√2 +3√2

x=8√2

√2 is a irrational number, so the right answer is the last option "it is irrational and equal to 8 square root of 2."