exam Maths Puzzle Numerical Ability

Please show me how to solve. Thanks!

(X - 3) (2X 3 - 15X - 6)

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exam Other Question

Could you please take the time to help me solve this problem: What is the sum of the roots of the quadratic equation: a x2 + b x + c = 0, where a, b, and c are all non-zero real constants.

Thanks for your help. i need help to understand these problems the steps they are odd problems therefore the answers are in the back but i do not understand how to get to them.

directions: sketch the