3 years ago

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

2 answers:

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 = ±14.

We can check this by doing:

14 × 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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