Plz answer 17 first question with explanation
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1
Answer:
Step-by-step explanation:
√3x²+6=9
squaring on both sides
(√3x²+6)²=9²
the root and square cancels each other
3x²+6=81
3x²=75
x²=25
take root
x=±5
the positive root is 5
Answered by
0
Answer:5
Step-by-step explanation:
sqrt(3x^2+6)=9
3x^2+6=9^2
3x^2=81-6
3x^2=75
x^2=75/3
x=sqrt(25)
x=5
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