Toán Lớp 8: Bài 1. Tính
a ) 6x² – 4x²( x² – 3x – 2 ) .
b ) ( 3x – 2) ²- 2(x – 1 )² .
c ) ( 2x^4 + 5x + x^3 – 2 – 3x^2 ) : ( x ²+ 1 – x )
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Toán Lớp 8: Bài 1. Tính
a ) 6x² – 4x²( x² – 3x – 2 ) .
b ) ( 3x – 2) ²- 2(x – 1 )² .
c ) ( 2x^4 + 5x + x^3 – 2 – 3x^2 ) : ( x ²+ 1 – x )
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