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Q1. Show that x^2+4x+7 has no zero.

Q2. Using Remaineder Theorem, show that polynomial p(x)=3X4-4X3-3x+4 is a multiple of x-1.

Q3. If 2x-√y=10 and xy= -√y, find value of 4x^2+7y^2.

Q4. Show that if 2(a^2+b^2)=(a+b)^2, then a=b

Please help quickly..answer fast thnks

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by riti0301

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