Toán Lớp 8: Tính : (5*x^2 +38*x+4)/(2*x^2 +17*x+1) – (x^2 +4*x+2)/(2*x^2 +17*x+1)
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Toán Lớp 8: Tính : (5*x^2 +38*x+4)/(2*x^2 +17*x+1) – (x^2 +4*x+2)/(2*x^2 +17*x+1)
Comments ( 1 )
{(5x^2 +38x+4)}/{(2x^2 +17x+1)} – {(x^2 +4x+2)}/{(2x^2 +17x+1)}
={5x^2 +38x+4 – x^2 +4x+2}/{(2x^2 +17x+1)}
={(4x^2+42x+6)}/{(2x^2 +17x+1)}