∵|a+12|+(b-3)2=0,
∴a+12=0或b-3=0,
解得,a=-12,b=3;
∵【(2a+b)2+(2a+b)(b-2a)-6b】÷2b
=(4a2+4ab+b2+b2-4a2-6b)÷2b
=2b(b+2a-3)÷2b
=b+2a-3,
∴原式=3+2×(-12)-3=-1;
故答案為:-1.
己知|a+½|+(b-3)√2=0,求[(2a+b)√2+(b-2a)(2a-b)-6b]÷2b
己知|a+½|+(b-3)√2=0,求[(2a+b)√2+(b-2a)(2a-b)-6b]÷2b
數學人氣:980 ℃時間:2020-06-03 02:48:10
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