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2 years ago

Solve by taking the square root of both sides.

Mathematics

2 answers:

horrorfan [7]2 years ago

8 0

Answer:

Step-by-step explanation:

Given

3(x + 3)² - 81 = 0 ( add 81 to both sides )

3(x + 3)² = 81 ( divide both sides by 3 )

(x + 3)² = 27 ( take the square root of both sides )

x + 3 = ± $\sqrt{27}$ = ± 3 $\sqrt{3}$ ( subtract 3 from both sides )

x = - 3 ± 3 $\sqrt{3}$

x = - 3 - 3 $\sqrt{3}$ or x = - 3 + 3 $\sqrt{3}$ → a

VARVARA [1.3K]2 years ago

4 0

Answer:

Step-by-step explanation:

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