Multiply and simplify. Assume that all variables represent positive real numbers.
-$2 \sqrt { 7 } ( \sqrt { 11 } + \sqrt { 7 } )$
A) $2 \sqrt { 77 } + 14$
B) $14 \sqrt { 11 } + 14$
C) $2 \sqrt { 11 } + 7$
D) $2 \sqrt { 77 } + 7$

Question

Quizplus · Accepted Answer

Using the distributive property, $2 \sqrt{7}(\sqrt{11} + \sqrt{7}) = 2\sqrt{7} \cdot \sqrt{11} + 2\sqrt{7} \cdot \sqrt{7} = 2\sqrt{77} + 14$.

Multiply and Simplify 27(11+7)2 \sqrt { 7 } ( \sqrt { 11 } + \sqrt { 7 } )27​(11​+7​)

Multiply and Simplify $2 \sqrt { 7 } ( \sqrt { 11 } + \sqrt { 7 } )$