已知丨a-1丨+(2a-b)²=0,求a²b-6ab-3a²b+5ab+2a²+5的值?
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![已知丨a-1丨+(2a-b)²=0,求a²b-6ab-3a²b+5ab+2a²+5的值?](/uploads/image/z/5913785-65-5.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%A8a%EF%BC%8D1%E4%B8%A8%EF%BC%8B%EF%BC%882a%EF%BC%8Db%EF%BC%89%26%23178%3B%3D0%2C%E6%B1%82a%26%23178%3Bb%EF%BC%8D6ab%EF%BC%8D3a%26%23178%3Bb%EF%BC%8B5ab%EF%BC%8B2a%26%23178%3B%EF%BC%8B5%E7%9A%84%E5%80%BC%3F)
已知丨a-1丨+(2a-b)²=0,求a²b-6ab-3a²b+5ab+2a²+5的值?
已知丨a-1丨+(2a-b)²=0,求a²b-6ab-3a²b+5ab+2a²+5的值?
已知丨a-1丨+(2a-b)²=0,求a²b-6ab-3a²b+5ab+2a²+5的值?
已知丨a-1丨+(2a-b)²=0
则,a-1=0 a=1
2a-b=0 b=2
a²b-6ab-3a²b+5ab+2a²+5
=-2a^2b-ab+2a^2+5
=-2*1*2-1*2+2*1+5
=-4-2+2+5
=1
∵丨a-1丨+(2a-b)²=0,
∴a=1 b=2
a²b-6ab-3a²b+5ab+2a²+5=2-12-6+10+2+5=1