426.If α and β are the zeroes of quadratic polynomial ax2 + bx + c, then findÂ
Since, α and β are the zeroes of quadratic polynomial ax2 + bx + c. Then,         Now,                               Â
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427.If α and β are the zeroes of the quadratic polynomial P(x) = Kx2 + 4x + 4 such that α2 + β2 = 24, find the value of K.
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Short Answer Type
428.If α and β are the zeroes of quadratic polynomial x2 + x – 2. Find the value of (α–1 + β–1).
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429.Find a quadratic polynomial when the sum and product of its zeroes respectively (i) Â Â Â Â Â Â Â Â Â Â (ii) Â Â
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Long Answer Type
430.If α, β are the zeroes of the quadratic polynomial 2x2– 3x – 5, form a polynomial whose zeroes are 2α + 1 and 2β + 1.