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    Work: Find the solution of equation 2.6*100000*Q*Q+2.4*100000*Q*Q = 20.9 .
    Question type: Equation
    Solution:Original question:

13 5

×

100000

Q

Q

+

12 5

×

100000

Q

Q

=

209 10

Left side of the equation =

260000

Q

Q

+

240000

Q

Q

    The equation is transformed into :

260000

Q

Q

+

240000

Q

Q

=

209 10

    This equation has no real solution!

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