Question

-72√5-72√5 = ???......​

Answer 1

Step-by-step explanation:

$\frac{ - \sqrt{72} }{5} - \frac{ \sqrt{72} }{5}$

$\frac{ - 2 \sqrt{72} }{5}$

72 can be written as 36×2

√36 is 6

so

$\frac{ - 2 \times 6 \sqrt{2} }{5}$

$\frac{ - 12 \sqrt{2} }{5}$

is the answer