3 years ago

Please help I'm dying rn

Mathematics

2 answers:

amid [387]3 years ago

6 0

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

Greeley [361]3 years ago

5 0

Answer:

c. $- 3 \sqrt{5}$

Step-by-step explanation:

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

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

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

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

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

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