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sdas [7]
3 years ago
8

Simplify the radical expression (-9√28a^2*1/3√63a) show work

Mathematics
1 answer:
Dovator [93]3 years ago
8 0
A ≥ 0

-\not9^3\sqrt{28a^2}*\frac{1}{\not3^1}\sqrt{63a}=\\\\ =-3a\sqrt{4*7}*\sqrt{9*7a}=\\\\=-3a*2\sqrt{7}*3\sqrt{7a}\\\\ =-18a\sqrt7*\sqrt 7*\sqrt a=\\\\=-18a*(\sqrt7)^2*\sqrt a =\\\\ =-18a*7*\sqrt a=\\\\ =-126a\sqrt a
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Step-by-step explanation:

−2−

5

4

x=13

−2+

−5

4

x=13

−5

4

x−2=13

Step 2: Add 2 to both sides.

−5

4

x−2+2=13+2

−5

4

x=15

Step 3: Multiply both sides by 4/(-5).

(

4

−5

)*(

−5

4

x)=(

4

−5

)*(15)

x=−12

Answer:

x=−12

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