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Rút gọn biểu thức : 1, A= ( 2x – 1 ) mũ 3 – 6x ( 2x – 1 ) mũ 2 + 12x mũ 2 ( 2x – 1 ) – 8x mũ 3 2, B= ( x mũ 2 – 2xy ) mũ 3 + 3 ( x mũ 2 – 2xy) mũ 2
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Rút gọn biểu thức :
1, A= ( 2x – 1 ) mũ 3 – 6x ( 2x – 1 ) mũ 2 + 12x mũ 2 ( 2x – 1 ) – 8x mũ 3
2, B= ( x mũ 2 – 2xy ) mũ 3 + 3 ( x mũ 2 – 2xy) mũ 2 y mũ 2 + 3 ( x mũ 2 – 2xy ) y mũ 4 + y mũ 6
3, C= ( x – 1 ) mũ 3 + 3 ( x – 1) mũ 2 + 3 x mũ 2 ( x – 1 ) + x mũ 3
4, D= ( y mũ 2 – x ) mũ 3 – 3 ( x – y mũ 2 ) mũ 2 y mũ 2 + 3 ( y mũ 2 – x ) y mũ 4 – y mũ 6
5, A= ( x – y ) mũ 3 + 3xy ( x – y )
6, B= ( x+y) mũ 3 + 3 ( x-y ) ( x + y ) mũ 2 + 3 ( x-y) mũ 2 ( x+y)+(x-y)mũ 3
7, A= ( 1 – 2x ) ( 4x mũ 2 + 2x + 1 ) + 8 ( x-1 ) ( x mũ 2 + x + 1 )
8, B= ( x mũ 2 – 2y ) ( x mũ 4 + 2x mũ 2 y + 4y mũ 2 ) – x mũ 3 ( x-y ) ( x mũ 2 + xy + y mũ 2 ) + 8y mũ 2
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Môn Toán
4 years
2020-11-18T02:31:36+00:00
2020-11-18T02:31:36+00:00 0 Answers
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