求解公式应用的数学题（初中版）.①x²+x+m=(x-n)² 则m=___n=___②x²-7x-30=________③x²+3x-1=_________④x²-4xy-1+4y²=__________⑤ab+2bc-ac-b²-c²=_________⑥x³·x-4x³+4x²-1=______

求解公式应用的数学题（初中版）.①x²+x+m=(x-n)² 则m=___n=___②x²-7x-30=________③x²+3x-1=_________④x²-4xy-1+4y²=__________⑤ab+2bc-ac-b²-c²=_________⑥x³·x-4x³+4x²-1=______
求解公式应用的数学题（初中版）.
①x²+x+m=(x-n)² 则m=___n=___
②x²-7x-30=________
③x²+3x-1=_________
④x²-4xy-1+4y²=__________
⑤ab+2bc-ac-b²-c²=_________
⑥x³·x-4x³+4x²-1=________
会做的做就行了.
⑥是x³乘x-4x³+4x²-1=____

求解公式应用的数学题（初中版）.①x²+x+m=(x-n)² 则m=___n=___②x²-7x-30=________③x²+3x-1=_________④x²-4xy-1+4y²=__________⑤ab+2bc-ac-b²-c²=_________⑥x³·x-4x³+4x²-1=______
①x²+x+m=(x-n)² 则m=_1/4__n=_-1/2__
②x²-7x-30=___(x-10)*(x+3)_____
③x²+3x-1=__(x+3/2)^2-13/4_______
④x²-4xy-1+4y²=___(x-2y)^2-1_______
⑤ab+2bc-ac-b²-c²=___(b-c)*(a+c-b)______
⑥x³·x-4x³+4x²-1=__x^3与x之间的符号看不清!______
会做的做就行了.