X= -5 +or- sqrt. of 17 over 2
6x+2=-3x^2-9x-4
Subtract 2
6x=-3x^2-9x-6
Subtract 6x
3x^2-15x-4
Solve using quadratic formula
Answer:
3rd option
Step-by-step explanation:
* The force of friction acts in opposite direction in which the surface is having tendency to move .
* the force of friction is equal to force applied to surfaces , so long as surface is at rest .
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