Question

Simplified form of √72 + √162 + √128 =

• A. 23√2
• B. 16√2
• C. 17√2
• D. none of these

Answer 1

Answer:

A. 23√2

$\sqrt{72}+\sqrt{162}+\sqrt{128}$

$=6\sqrt2+9\sqrt2+8\sqrt2$

$=23\sqrt2$