11点前务必答出!)1:4a(x-2)²-2b(2-x)³2:(2x+3)(x-2y)+(x-2y)(x+1)+(2y-x)3:m²(a²+b²)-mn(b²+a²)+mp(a²+b²)4:6p(x-1)²-8p²(1-x)²5:(a-b)的2n次方-(b-a)2n+1次方
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![11点前务必答出!)1:4a(x-2)²-2b(2-x)³2:(2x+3)(x-2y)+(x-2y)(x+1)+(2y-x)3:m²(a²+b²)-mn(b²+a²)+mp(a²+b²)4:6p(x-1)²-8p²(1-x)²5:(a-b)的2n次方-(b-a)2n+1次方](/uploads/image/z/4379514-42-4.jpg?t=11%E7%82%B9%E5%89%8D%E5%8A%A1%E5%BF%85%E7%AD%94%E5%87%BA%21%EF%BC%891%EF%BC%9A4a%28x-2%29%26sup2%3B-2b%282-x%29%26sup3%3B2%3A%282x%2B3%29%28x-2y%29%2B%28x-2y%29%28x%2B1%29%2B%282y-x%293%3Am%26sup2%3B%28a%26sup2%3B%2Bb%26sup2%3B%29-mn%28b%26sup2%3B%2Ba%26sup2%3B%EF%BC%89%2Bmp%EF%BC%88a%26sup2%3B%2Bb%26sup2%3B%EF%BC%894%EF%BC%9A6p%28x-1%29%26sup2%3B-8p%26sup2%3B%281-x%29%26sup2%3B5%EF%BC%9A%EF%BC%88a-b%29%E7%9A%842n%E6%AC%A1%E6%96%B9-%EF%BC%88b-a%292n%2B1%E6%AC%A1%E6%96%B9)
11点前务必答出!)1:4a(x-2)²-2b(2-x)³2:(2x+3)(x-2y)+(x-2y)(x+1)+(2y-x)3:m²(a²+b²)-mn(b²+a²)+mp(a²+b²)4:6p(x-1)²-8p²(1-x)²5:(a-b)的2n次方-(b-a)2n+1次方
11点前务必答出!)
1:4a(x-2)²-2b(2-x)³
2:(2x+3)(x-2y)+(x-2y)(x+1)+(2y-x)
3:m²(a²+b²)-mn(b²+a²)+mp(a²+b²)
4:6p(x-1)²-8p²(1-x)²
5:(a-b)的2n次方-(b-a)2n+1次方
11点前务必答出!)1:4a(x-2)²-2b(2-x)³2:(2x+3)(x-2y)+(x-2y)(x+1)+(2y-x)3:m²(a²+b²)-mn(b²+a²)+mp(a²+b²)4:6p(x-1)²-8p²(1-x)²5:(a-b)的2n次方-(b-a)2n+1次方
1:4a(x-2)²-2b(2-x)³
=4a(x-2)²+2b(x-2)³
=2(x-2)²[2a+b(x-2)]
=2(x-2)²(bx+2a-2b)
2:(2x+3)(x-2y)+(x-2y)(x+1)+(2y-x)
=(2x+3)(x-2y)+(x-2y)(x+1)-(x-2y)
=(x-2y)[(2x+3)+(x+1)-1]
=3(x-2y)(x+1)
3:m²(a²+b²)-mn(b²+a²)+mp(a²+b²)
=m²(a²+b²)-mn(a²+b²)+mp(a²+b²)
=m(a²+b²)(m-n+p)
4:6p(x-1)²-8p²(1-x)²
=6p(x-1)²-8p²(x-1)²
=2p(x-1)²(3-4p)
5:(a-b)的2n次方-(b-a)2n+1次方
=(a-b)的2n次方+(a-b)2n+1次方
=(a-b)的2n次方[1+(a-b)]
=(a-b+1)(a-b)的2n次方