若2m平方+8m-6=0,即m²+4m等于多少?
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![若2m平方+8m-6=0,即m²+4m等于多少?](/uploads/image/z/6803098-34-8.jpg?t=%E8%8B%A52m%E5%B9%B3%E6%96%B9%2B8m-6%3D0%2C%E5%8D%B3m%26%23178%3B%2B4m%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F)
若2m平方+8m-6=0,即m²+4m等于多少?
若2m平方+8m-6=0,即m²+4m等于多少?
若2m平方+8m-6=0,即m²+4m等于多少?
2m²+8m-6=0
化简一下:2×(m²+4m)-6=0
2×(m²+4m)=6
m²+4m=6÷2=3
所以结果是3
两边除以2
m平方+4m-3=0
m平方+4m=3
2m²+8m-6=0
2(m²+4m)=6
m²+4m=3
2m平方+8m-6=0
2(m²+4m)=6
m²+4m=3
2m^2+8m-6=0
m^2+4m-3=0
m^2+4m=3
2m平方+8m-6=0
2m平方+8m=6
m²+4m=6/2
m²+4m=3