Question

please help I'm dying rn​

Answer 1

Answer:

-3√5

Step-by-step explanation:

3√5-2√45

3√5-2•√9×√5

3√5-2•3√5

3√5-6√5

-3√5

Answer 2

Answer:

c. $- 3 \sqrt{5}$

Step-by-step explanation:

$3 \sqrt{5} - 2 \sqrt{45}$

$- 2 \times 3 \sqrt{5} = - 6 \sqrt{5}$

$3 \sqrt{5} - 6 \sqrt{5}$

$(3 - 6) \sqrt{5} = - 3 \sqrt{5}$

$\boxed{\green{= - 3 \sqrt{5} }}$