Question:medium

Let N be the number of quadratic equations with coefficients from {0,1,2,...,9} such that 0 is a solution of each equation. Then the value of N is:

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When solving for the number of solutions of a quadratic equation with a specific root, substitute the root into the equation and simplify. Then, count the number of valid combinations for the coefficients.
Updated On: Nov 28, 2025
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