1:把方程2x(x-1)=3(x+5)+4化为一般形式ax平方+bx+c=0 (a不等于0)后,a= b= c=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/21 02:29:13
![1:把方程2x(x-1)=3(x+5)+4化为一般形式ax平方+bx+c=0 (a不等于0)后,a= b= c=](/uploads/image/z/330442-34-2.jpg?t=1%EF%BC%9A%E6%8A%8A%E6%96%B9%E7%A8%8B2x%EF%BC%88x-1%EF%BC%89%3D3%EF%BC%88x%2B5%EF%BC%89%2B4%E5%8C%96%E4%B8%BA%E4%B8%80%E8%88%AC%E5%BD%A2%E5%BC%8Fax%E5%B9%B3%E6%96%B9%2Bbx%2Bc%3D0+%28a%E4%B8%8D%E7%AD%89%E4%BA%8E0%29%E5%90%8E%2Ca%3D+b%3D+c%3D)
x)3|gֳgv>_mT~OG.P62ML{cד
/:<ݻĊ;75i'Uh'(h$>|m]}O'$*$*$$;:ŨBhDMmQq))PXQǖD[#
@c26yvP9 5`%8U"[tydRm:' -T@
1:把方程2x(x-1)=3(x+5)+4化为一般形式ax平方+bx+c=0 (a不等于0)后,a= b= c=
1:把方程2x(x-1)=3(x+5)+4化为一般形式ax平方+bx+c=0 (a不等于0)后,a= b= c=
1:把方程2x(x-1)=3(x+5)+4化为一般形式ax平方+bx+c=0 (a不等于0)后,a= b= c=
2x(x-1)=3(x+5)+4
2x²-2x=3x+15+4
2x²-5x-19=0
∴a=2 b=-5 c=-19
a=2 b=-5 c=-19
2x(x-1)=3(x+5)+4
=>2x^2-2x=3x+15+4
=>2x^2-5x-19=0
所以a=2, b=-5, c= -19