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Again, please help. Find all possible x such that x^4+2x^3+8x+9=0(mod 35).? What type of pollution is smog? solid waste air pollution hazardous waste water pollutio? 1 fahrenites is equivalent to how many degree celcius? HELP! Predict the equilibrium concentration of H+ in a 0.25 M solution of H2SO4-? Ka2=0.012? Consider the polynomial x^5-4x^2-7x-2=0. Show that the closed circle centered at x=0 of radius two contains at least two roots.?