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Nuetrik [128]
3 years ago
11

Solve the equation using square roots: 2x^2-17=15

Mathematics
1 answer:
Gwar [14]3 years ago
6 0

Answer:

x = 4  or  x = –4

Step-by-step explanation:

2x² – 17 = 15

Add 17 to both sides:

2x² = 32

Divide both sides by 2:

x² = 16

Take the square root:

√x² = √16

Simplify:

x = ±4

Therefore:

x = 4  or  x = –4

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