exam Maths Puzzle Numerical Ability

graph for y = 2x. graph for y = x + 1.

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I have a couple more problems today I need steps and solutions for if anyone would be so kind.

Factor each polynomial completely, given that the binomial following it is a factor of the polynomial.

x� + 2x� - 5x - 6, x + 3 Two surveyors with two-way radios leave the same point at 9:00 A.M., one walking due south at 4 mi/hr. How long can they communicate with one another if each radio has a maximum range of 2 miles?