Question

Simplify the product 3 sqrt 7 (1- sqrt 7)

Answer 1

$3\sqrt7(1-\sqrt7)=3\sqrt7\cdot1-3\sqrt7\cdot\sqrt7=3\sqrt7-3\cdot7=3\sqrt7-21$

$Used:\ \sqrt{a}\cdot\sqrt{a}=a$

Answer 2

Answer:

Simplify the product of 3 divided by  sqrt 7 and 3 subtracting sqrt 7 that you found in the previous step.

is

⇒ 2

Step-by-step explanation: