(ab²+a²b)÷(a+b)=(x²-49)÷(7-x)=(1/4乘以x²-x+1)÷(1-1/2乘以x)=(4mn的三次方+6m的三次方n)÷(2n²+3m²)=【(2a-1)²-(3a-1)²】÷(5a-2)=解下列方程①49x
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(ab²+a²b)÷(a+b)=(x²-49)÷(7-x)=(1/4乘以x²-x+1)÷(1-1/2乘以x)=(4mn的三次方+6m的三次方n)÷(2n
(ab²+a²b)÷(a+b)=(x²-49)÷(7-x)=(1/4乘以x²-x+1)÷(1-1/2乘以x)=(4mn的三次方+6m的三次方n)÷(2n²+3m²)=【(2a-1)²-(3a-1)²】÷(5a-2)=解下列方程①49x
(ab²+a²b)÷(a+b)=
(x²-49)÷(7-x)=
(1/4乘以x²-x+1)÷(1-1/2乘以x)=
(4mn的三次方+6m的三次方n)÷(2n²+3m²)=
【(2a-1)²-(3a-1)²】÷(5a-2)=
解下列方程
①49x²-25=0 ②4x²=8x
(ab²+a²b)÷(a+b)=(x²-49)÷(7-x)=(1/4乘以x²-x+1)÷(1-1/2乘以x)=(4mn的三次方+6m的三次方n)÷(2n²+3m²)=【(2a-1)²-(3a-1)²】÷(5a-2)=解下列方程①49x
1.ab
2.-(x+7)
3.(2-x)/2
4.2mn
5.-a
①.±5/7
②.x=0或x=2
(ab²+a²b)÷(a+b)=abx(a+b))÷(a+b)=ab
(x²-49)÷(7-x)=(x+7)(x-7)÷(7-x)=-(x+7)=-x-7