5(3A-2B)²-2(2A+3B)²-3(2B-3A)²+4(3B+2A)²等于多少
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![5(3A-2B)²-2(2A+3B)²-3(2B-3A)²+4(3B+2A)²等于多少](/uploads/image/z/250279-7-9.jpg?t=5%EF%BC%883A-2B%EF%BC%89%26%23178%3B-2%EF%BC%882A%2B3B%EF%BC%89%26%23178%3B-3%EF%BC%882B-3A%EF%BC%89%26%23178%3B%2B4%EF%BC%883B%2B2A%EF%BC%89%26%23178%3B%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91)
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5(3A-2B)²-2(2A+3B)²-3(2B-3A)²+4(3B+2A)²等于多少
5(3A-2B)²-2(2A+3B)²-3(2B-3A)²+4(3B+2A)²等于多少
5(3A-2B)²-2(2A+3B)²-3(2B-3A)²+4(3B+2A)²等于多少
5(3A-2B)²-2(2A+3B)²-3(2B-3A)²+4(3B+2A)²
=5(3A-2B)²-2(2A+3B)²-3(3A-2B)²+4(2A+3B)²
=5(3A-2B)²-3(3A-2B)²-2(2A+3B)²+4(2A+3B)²
=2(3A-2B)²+2(2A+3B)²
=18A²-24AB+8B²+18A²+24AB+8B²
=36A²+16B²