1.

x2-3x+2x2-5x +48x2-6x + 8x2-9x +148

Answer»

(x*x-3x+2)/(x*x-5x+4) = (x*x-6x+8)/(x*x-9x+14) (x-2)(x-1)/((x-4)(x-1)) = (x-4)(x-2)/((x-7)(x-2)) (x-2)/(x-4) = (x-4)/(x-7) (x-2)(x-7) = (x-4)(x-4) x*x-9x+14 = x*x-8x+16 8x - 9x = 16 - 14 -x = 2 x = -2

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