当x=_____时.代数式4x^2+7x+3与3x+2的值相等

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当x=_____时.代数式4x^2+7x+3与3x+2的值相等当x=_____时.代数式4x^2+7x+3与3x+2的值相等当x=_____时.代数式4x^2+7x+3与3x+2的值相等当x=-1/2

当x=_____时.代数式4x^2+7x+3与3x+2的值相等
当x=_____时.代数式4x^2+7x+3与3x+2的值相等

当x=_____时.代数式4x^2+7x+3与3x+2的值相等
当x=-1/2时.代数式4x^2+7x+3与3x+2的值相等
4x^2+7x+3=3x+2
4x^2+4z+1=0
(2x+1)^2=0
2x+1=0
x=-1/2

答案是-1/2。