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Puddles
Mathematics
12 July, 14:15
What is the solution of 3 sqrt x + 8 = - 4?
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Gerardo Heath
12 July, 14:36
0
The answer is A. - 72
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Jerome Ayala
12 July, 14:37
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The options are
x = - 72
x = - 66
x = 58
no solution
Answer:
x = 16
Step-by-step explanation:
From the options above, you are asked to look for the value of x. The equation is 3 sqrt x + 8 = - 4. The equation can be represented as follows:
3√x + 8 = - 4
The equation can be reduced by bringing the like terms together for easy simplification.
8 will be transferred to the right side to make the value - 8
3√x = - 4 - 8
3√x = - 12
divide both sides by 3
√x = - 12/3
√x = - 4
square both sides
(√x) ² = - 4²
x = 16
The square root of 16 is either - 4 or + 4. The best value for the square root of 16 to fit into the equation is - 4.
For example inserting the value into the equation will be
3√x + 8 = - 4
3√16 + 8
3 * - 4 + 8
-12 + 8 = - 4
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