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Vladimir79 [104]
1 year ago
13

Heeelllllllllllp Simplify the expression completely. √144 +18 √12-5√64

Mathematics
1 answer:
Delicious77 [7]1 year ago
7 0

Answer:

A

Step-by-step explanation:

using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab} , then

\sqrt{12}

= \sqrt{4(3)}

= \sqrt{4} × \sqrt{3}

= 2\sqrt{3}

Then

\sqrt{144} + 18\sqrt{12} - 5\sqrt{64}

= 12 + 18(2\sqrt{3} ) - 5(8)

= 12 + 36\sqrt{3} - 40

= - 28 + 36\sqrt{3}

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