Question

Why are they not equal? Please explain!!

Answer 1

Answer:

The root of 16 is 4 and the root of 9 is 3.

Step-by-step explanation:

For the first instance, 16+9 is 25 and the root of that is 5. But for the second one, we have to first find the roots. So 4+3 which equals 7. These are obviously not equal. Does this make sense? Hope that helps.

Answer 2

Answer:

Step 1:  Justify

Solve the first one

$\sqrt{16+9}$ → $\sqrt{25}$

$\sqrt{25}$ → $5$

Solve the second one

$\sqrt{16} + \sqrt{9}$ → $\sqrt{4^2} + \sqrt{3^2}$

$\sqrt{4^2} + \sqrt{3^2}$ → $4+3$

$4+3$ → $7$

So...

$5\neq 7$