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24.07.2019 •
Mathematics
Solve for x. write the smaller solution first, and the larger solution second. (x-10)^2-1=0
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Ответ:
and .
Step-by-step explanation:
Start by adding 1 to both sides of this equation.
.
The square of what number or numbers will lead to the number "1"? It turns out that not only , but as well. In other words, the value can be either 1 or -1. Either way, the equation is still going to hold. That's the reason why there are two solutions to this equation.
Consider the case when . Add 10 to both sides of the equation. .
Now, consider the case when . Again, add 10 to both sides of the equation, .
Order the two solutions in an increasing order:
,.Ответ: