9 Find a, b and c, given that the following pairs of polynomials are identically equal. а ax? + bx + с %3D Зх2 b (a - b)x? + (2a + b)x = 7x – x2, for all x. c a(x - 1)2 + b(x - 1) + c = x², for all x. d a(x + 2)2 + b(x + 3)2 + c(x + 4)² = 2x2 + 8x + 6, for all x. 4x + 1, for all x.

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