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Diano4ka-milaya [45]
3 years ago
7

10 points! Solve the equation. If necessary, round your answer to the nearest tenth.

Mathematics
2 answers:
Julli [10]3 years ago
7 0
If x² = 196, then we must do the inverse (square root) to find x. However, the square root of any positive number will always be ± (plus or minus).

That means you have to do:

√196 = x
x = <span>±14. 

We can check this by doing:

14 </span>× 14 = 196
-14 × -14 = 196

Therefore the answer is B) -14, 14. 
Andrej [43]3 years ago
6 0
X²=196
x=⁺₋√196=⁺₋14

We have two solutions: -14 and +14

Answer: B) -14,14
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