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jennifercastill3
27.08.2019 •
Mathematics
Create an equation that results in one extraneous solution
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Ответ:
x = 8 - 3x . . . . . . . . (1)
-x = 8 - 3x . . . . . . . .(2)
From (1), 4x = 8
x = 2
From (2), 2x = 8
x = 4
Putting x = 2 in the original equation:
⎮2⎮= 8-3(2)
2 = 8 - 6
2 = 2
Putting x = 4 in the original equation:
⎮4⎮= 8-3(4)
4 = 8 - 12
4 = -4
Therefore, the valid solution is x = 2, and the extraneous solution is x = 4
Ответ:
Hi there!
The answer to this question is: 1.198945
Step-by-step explanation:
Treat eˣ like a "x" if you can temporarily replace eˣ with "x"
so now it's (x²- 11) (x²+6)=0 then replace "x" with eˣ
then you should get e²ˣ = 11 and e²ˣ = -6
next in order to solve for x, you must ln both sides
and you get 2x = ln(11) and you should get 1.198945
keep in mind: e²ˣ = -6 will be undefined when you ln both sides