Question

2√18 - √72 with solution​

Answer 1

Step-by-step explanation:

2√18-√72

=2√18-√(18*4)

=2√18-2√18

=0

Answer 2

Explanation:

$2\sqrt{18} - \sqrt{72}$

$= \sqrt{(18)(2)(2)} - \sqrt{72}$

$=\sqrt{72} - \sqrt{72}$

$= 0$

Aliter:

$2\sqrt{18} - \sqrt{72}$

$= 2\sqrt{18} - \sqrt{(18)(2)(2) }$

$= 2\sqrt{18} - 2\sqrt{18}$

$= 0$

Answer: 0

I hope this helps. :D