(-a+1/5)(-a-1/5)=________ (-a-5)(_________ )=25-a^2 100/99*101+1=________1 (-a+1/5)(-a-1/5)=________2 (-a-5)(_________ )=25-a^23 100/99*101+1=________4 (x^4+1)(x^2+1)(x+1)(x-1)=____________

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(-a+1/5)(-a-1/5)=________(-a-5)(_________)=25-a^2100/99*101+1=________1(-a+1/5)(-a-1/5)=________2(-a

(-a+1/5)(-a-1/5)=________ (-a-5)(_________ )=25-a^2 100/99*101+1=________1 (-a+1/5)(-a-1/5)=________2 (-a-5)(_________ )=25-a^23 100/99*101+1=________4 (x^4+1)(x^2+1)(x+1)(x-1)=____________
(-a+1/5)(-a-1/5)=________ (-a-5)(_________ )=25-a^2 100/99*101+1=________
1 (-a+1/5)(-a-1/5)=________
2 (-a-5)(_________ )=25-a^2
3 100/99*101+1=________
4 (x^4+1)(x^2+1)(x+1)(x-1)=____________

(-a+1/5)(-a-1/5)=________ (-a-5)(_________ )=25-a^2 100/99*101+1=________1 (-a+1/5)(-a-1/5)=________2 (-a-5)(_________ )=25-a^23 100/99*101+1=________4 (x^4+1)(x^2+1)(x+1)(x-1)=____________
1 (-a+1/5)(-a-1/5)=(-a)^2-(1/5)^2=a^2-1/25
2.(-a-5)(_a-5_ )=25-a^2
3 100/99*101+1=_100÷[(100-1)(100+1)+1]=100÷100^2=1/100.
4 (x^4+1)(x^2+1)(x+1)(x-1)
=(X^2+1)(X^2+1)(X^2-1)
=(X^4+1)(X^4-1)
=X^8-1.

词组转换1 treat sth as a joke=___ ___ sth ___ a joke2 regret leaving school=regret ___ ___ ___ ___ 已知点A(a,1)与点A(5,b)是关于原点O的对称点,则a=___;b=___. 已知a-b=5,ab=3,则(a^+1)(b^+1)=___ 若|3a+2b+7|=-(5a-2b+1)²,则a+b=___ 1、-5是___负的平方根,6的负的平方根是___.2、如果根号(a-1)的平方=1-a,则a的取值范围是___. 已知平面直角坐标系中两点A(x,1),B(-5,y).若点A、B关于y轴对称,则x=___,y=___. 初一英语(根据首字母提示,用人体各部分的名称填空,完成短文)Here is a photo of a nice girl.She has a round f ___(1),long black h ___(2),two big black e ___(3),a small m ___(4)and a small n ___(5).Her e ___ (6) are small,too Her 在横线上填上恰当的词语(英语).1、 There are ___ seasons in a year .2、 There are ___ seasonds in a minute.3、 There are ___ months in a year.4、 There are ___ days in a week.5、 There are ___ hours in a day.6、 The ___ month in a,b属于正实数.且4a+b=1,则1/a+1/b的最小值是___,此时a=___,b=___. 7-(a-5)²的最大值是___,其中a=___;(a+b)²-8的最小值是___,其中a,b关系是 (1)若a-(-b)=0,则|a-b|=___(2)若a0则|a-b|=___(3)若a=-5,b=-3,则|a-b|(4)若a=2,|b|=7,则a-b=___ 不等式(x-3)(x-3)≥(x+2)(x-2)的解是?(3-2a)(3+2a)=___(-x-5)(-x+5)=___(x-y-z)(__)=x的2次方-(y+z)的2次方(-2a+___)(___+7分之1b)=49分之1 b的平方-4a的平方 若x=1是含有x的方程a²x+2a=2x的解 则-4a+5-2a²=___ 负3分之5除以【负4分之1-(a)】=5分之3,则a=___? (2a-1)的绝对值+(5b-4)的绝对值=0 a=____ b=___ 初二数学题-填空(1)若a+1/a=2,那么a^2+1/a^2=(___),a^4+1/a^4=(___).(2)若a+1/a=3,a^2+1/a^2=(___),a^4+1/a^4=(___).(3)若a+1/a=n,那么a^2+1/a^2=(___),a^4+1/a^4=(___). 若(9a^2)^3X(1/3)^8=4则a^12=___,a^3=___. 关于不等式组的填空题,1.若不等式组x+2>a,的结集为-1<x<2,则a=___;b=___.x-1<b2.若不等式组x>2a+3,的结集是x>a-5,则a的取值范围是___.x>a-53.若不等式组x+a≥0,有解,则a的取值范围是___.1-2x>x-2