exam Maths Puzzle Numerical Ability

how do you factor this polynomial x^2+14x+24

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exam Other Question

Evaluate a(b+c) if a = 9, b = 3, and c = 7. My car gets 12 miles per gallon of gasolene. Gas is 4$/gallon.
If I buy a car that gets 16 miles per gallon at a cost of $500, how long or how many miles will it take me to pay for it with savings of gas cost?

Help please,
Bob