Find the value(s) of k for which the quadratic equation x² + 5kx + 16 = 0 has real and equal roots.

Nature of Roots Based on Discriminant, Quadratic Formula for Finding Roots | PadhAiPro

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TextNature of Roots Based on DiscriminantQuadratic Formula for Finding RootsCBSE PYQ

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A rectangular floor area can be completely tiled with 200 square tiles. If the side length of each tile is increased by 1 unit, it would take only 128 tiles to cover the floor.

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