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Mathematics
Kiley Bentley
26 August, 04:38
Solve √ (3x+7) + 2√ (x-8) = 0.
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Adan Houston
26 August, 06:26
0
The solution to this question is 39
Step-by-step explanation:
Given that:
√ (3x+7) + 2√ (x-8) = 0.
√ (3x+7) = -2√ (x-8) (i)
square of the equation (i)
Then
(√ (3x+7)) ^2 = (-2√ (x-8)) ^2
we know that √a*√a = (√a) ^2=a So,
(3x+7) = 4 (x-8)
3x+7=4x-32 / /multiply by 4
32+7=4x-3x exchange the value.
39=1x
x=39.
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