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☆1 inequalities
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Assignment:Find the solution set of inequality (2*x+10+0.8*9.5)*(7.2*x+134.54)/100/(15+x) >1.6 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
( 2 * x + 10 + 0.8 * 9.5 ) * ( 7.2 * x + 134.54 ) / 100 / ( 15 + x ) >1.6 (1)
From the definition field of divisor
15 + x ≠ 0 (2 )
From inequality(1):
-16.510002 < x < -15 或 x > 0.135002
From inequality(2):
x < -15 或 x > -15
From inequalities (1) and (2)
-16.510002 < x < -15 或 x > 0.135002 (3)
The final solution set is :
-16.510002 < x < -15 或 x > 0.135002Your problem has not been solved here? Please take a look at the hot problems !