1.2345^2+(0.7655)^2+2.469×0.7655-2.5^2
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1.2345^2+(0.7655)^2+2.469×0.7655-2.5^21.2345^2+(0.7655)^2+2.469×0.7655-2.5^21.2345^2+(0.7655)^2+2.46
1.2345^2+(0.7655)^2+2.469×0.7655-2.5^2
1.2345^2+(0.7655)^2+2.469×0.7655-2.5^2
1.2345^2+(0.7655)^2+2.469×0.7655-2.5^2
=1.2345²+2×1.2345×0.7655+0.7655²-2.5²
=(1.2345+0.7655)²-6.25
=4-6.25
=-2.25
-9/4,计算步骤省略。
1.2345^2+(0.7655)^2+2.469×0.7655-2.5^2
1.2345^2+0.7655^2+2.469X0.7655
求:1.2345^2+2.469*0.7655+0.7655^2 用公式法
1.2345^2+0.7655^2+2.469*0.7655,求详细过程,谢谢!
初一简便计算1.2345^2+0.7655^2+2.469*0.7655
计算题:1.2345^5+0.7655^2+2.469*0.76552345^5+0.7655^2+2.469*0.7655
因式分解 abcx^2+(a^2b ^2 +c^2)x+abc
已知14(a^2+b^2+c^2)=(a+2B+3C)^2求a:b:c=?快^^^^^^^^过程^^^^^^^^详细过程^^^^^^速度^^^^^^在线等^^^^^回答好^^^^加分!
(X^3Y^2)^3+(-2X^3Y^3)^2×X^3
3(x^4)^3-2(xy)^4x^8y+5(x^3y^2)x^6y
1.2345^2+0.7655^2+2.469x0.7655=?
计算(X^3)^4一3X^4·(X^2)^4
1.2345^2+0.7655^2+2.496*0.7655注:此题中2指平方.
1.2345的2次方+0.7655的2次方+2.469乘0.7655等于多少?十万火急!
1.2345^2+0.7655^2+2.469乘0.7655用简便方法做
一道初中de 简便运算数学题简便运算1.2345^2*0.7655^2+7.469*0.7655
解不等式-3(2x+2)-4x>或=-8x+30^^^^^^^^^^^谢谢了
(-2)^100+(-2)^99