exam Maths Puzzle Numerical Ability

SOLVE BY USING SQUARE ROOT PROPERTY

M^2-25=0

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exam Other Question

Demand for pools
Tropical Pools sells an aboveground model for p dollars each. The monthly revenue from the sale of this model is given by:
R = -0.08p^2 + 300p
Revenue is the pr Find the domain of f, the roots of f(x)=0, and determine the signs of f where

f(x)= x^2-1/sqrt x+1 + sqrt x+1