作业帮a/b=a÷_____=a · _____=_____ · a=_____÷a
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a/b=a÷_____=a · _____=_____ · a=_____÷a
a/b=a÷_____=a · _____=_____ · a=_____÷a
a/b=a÷_____=a · _____=_____ · a=_____÷a
a/b=a÷b=a×1/b=1/b×a=a²b÷a
a/b=a÷_b____=a · _1/b____=____1/b_ · a=__a2/b___÷a不知道对不对啊。
(a+b)/(a-b )+ (a-b)/(a+b) + 4ab/(b^2-a^2)=(a+b)^2/(a^2-b^2)+(a-b)^2/(a^2-b^2)-4ab/(a^2-b^2)
=(a^2+2ab+b^2+a^2-2ab+b^2-4ab)/(a^2-b^2)=2(a-b)^2/(a^2-b^2)
=2(a-b)/(a+b) （化简至此）
=2(-5b-b)/(-5b+b)
=2(-6b)/(-4b)
=3
条件：a不等于b；b不等于0。
a/b=a÷_____=a · _____=_____ · a=_____÷a
若3a²+2|b-1|=0,则a=_____,b=____
live as a family=live ____ _____ _____
已知a²+b²-4a+6b+13=0,则a=____,b=_____
已知4a^2+4a+b^2-6b+10=0,则a=____,b=_____
如果6a=5b,那么a比b=_____比____,a比5=____比____.
若a+b2-a+4b+41/4=0,则a=____,b=_____
A.what are the children going ____ ____ next weekend?B.they ____ ____ ____ have ____ ____ next _____.（2）A.____ _____ david _____ _____ _____ next saturday?B.he______ _______ _______ _______ _______ ____ _____ saturday.
计算题：a^2+n/m*a+____=(_____+_____)^2a^2+（n/m）*a+____=(_____+_____)^2
{a}____{a,b,c} {a,c,b}____{a,b} {a,b,c}_____{a,c,b} 空集_____{a,b,c}
代数式-3-（根号a+根号b）的最大值是_______,此时a=____,b=_____.
√13的整数部分是a,小数部分是b,则a=____,b=_____
若|a－1|和|b+2|互为相反数,则a=____,b=_____ 我需要解题过程,
英语翻译填空:____ _____ we _____ _____ _____ a _____
1、若IaI+a=0,则a的取值范围是____;2、若IaI+IbI=0,则a=_____,b=_____.
A:____ you a student B:No,____ _____.I'm a teacher.
若a的平方=a,则a=____；若a的立方=a,则a=_____.
Simon learned how to drive a car by himself.=Simon ____ _____ _____ ____ drive a car