若a²-b²-4-( )=a²+b²+ab,则( )内的式子为?1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3
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![若a²-b²-4-( )=a²+b²+ab,则( )内的式子为?1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3](/uploads/image/z/3722967-63-7.jpg?t=%E8%8B%A5a%26%23178%3B-b%26%23178%3B-4-%EF%BC%88+%EF%BC%89%3Da%26%23178%3B%2Bb%26%23178%3B%2Bab%2C%E5%88%99%EF%BC%88+%EF%BC%89%E5%86%85%E7%9A%84%E5%BC%8F%E5%AD%90%E4%B8%BA%3F1.8-8x%2F1.2-1.3-3x%2F2%3D5x-0.4%2F0.3)
若a²-b²-4-( )=a²+b²+ab,则( )内的式子为?1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3
若a²-b²-4-( )=a²+b²+ab,则( )内的式子为?
1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3
若a²-b²-4-( )=a²+b²+ab,则( )内的式子为?1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3
若a²-b²-4-(-2b²-ab-4 )=a²+b²+ab