若代数式2x2+3y+7的值为8，那么代数式4x2+6y-2的值是_刷题宝

题干

若代数式2x²+3y+7的值为8，那么代数式4x²+6y-2的值是（　　）

A：0

B：2

C：1

D：12

上一题下一题 0.0难度选择题更新时间:2017-12-25 06:26:51

答案(点此获取答案解析）

A

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