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Prove that x^2 - 8x + 21 is Positive for all Real Values of x
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Prove that x^2 - 8x + 21 is positive for all real values of x, using the method of 'completing the square'.
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Prove that x^2 - 8x + 21 is Positive for all Real Values of x
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1. show that each pair of following equations has a common root a) x² – 8x +15 =0 and 2x² – x –15 =0...
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