exam Maths Puzzle Numerical Ability

I need help solving this problem (x+3)(x-2)=14. I need to foil first and then I think I have to solve using the ABC method.

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exam Other Question

An experienced accountant can balance the books twice as fast as a new accountant. Working together, it takes the accountants 10 hours. How long would it take the expereinced accountant working alone. solve the following system of linear inequalities by graphing.
x-3y > 6
3x + 2y > 12