exam Maths Puzzle Numerical Ability

solve (x+10)(x-4)(x+6)>0

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exam Other Question

please help to multiply

5c^-2m^-2 / a^2 (c^2m / a^-2 - 2c^2m^2a^2 / t)
In an effort to determine the rate of cake consumption in a certain city, a researcher questioned a random sample of 100 licensed drivers living in that city. Sixty-seven of them s