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KATRIN_1 [288]
3 years ago
12

Please see attached picture for question:​

Mathematics
1 answer:
Tasya [4]3 years ago
4 0

10^2x²-3=10^9-x²

by comparison,

2x²-3=9-x²

3x²=12

x²=4

x= 2 or -2

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