maths question

来源：学生作业帮编辑：搜搜考试网作业帮分类：数学作业时间：2024/05/13 13:23:22

maths question
当x=-1时.是代数式2a*x的三次方-3bx+8的值为18.这时,代数式9b-6a+2=?

将x=-1带入,得：3b-2a+8=18
3b-2a=10
(3b-2a)x3=10x3=30
9b-6a=30
9b-6a+2=32

maths question A Maths question A maths question Help ask a maths question A difficult Maths question A ENGLISH maths question. Maths question(急） help~2 条 F.2 maths question~ maths.question shou.ji.jian.pan.huai 数学问题、是maths question 还是 prouble 还是其他的 Can anyone please help me answer this maths question? Can you work out this maths question?改错