Is it the same?and Are my answers right or not ?[For Maths]

2007-01-02 11:31 pm
Is it the same ?? [ For Maths ]
The questions are

Express the following algebraic expressions in word phrases.
(a) b^2 - 4c (b) x/y + z

I wrote the answers are
(a) b square minus four c

(b) x over y plus z

But the answers are
(a) subtract the product of 4 and c from the square of b

(b) divide x by y and then add z to the quotient

Are my answers right or not ??
Please TELL ME !!!
更新1:

可以答中文~

回答 (2)

2007-01-04 12:51 am
✔ 最佳答案
Actually a part u are right

if u want to be more 文雅, but not 口語 (文雅好d)

product of 4 and c, square of b is much better than four c and b square

But b part...

"x over y plus z" is wrong...

Because The teacher don't know U are Talking about x/(y+z) or (x/y) + z

Therefore

" and then " is very important

Once again If u want to be 文雅,

U should use "divide x by y" other than x over y

But if u don't want to write "and then add z to the quotient",

U can juz write " and then add z"

Hope can help u ~



add z to the quotient

2007-01-03 16:51:47 補充:
最後多左句...唔好見怪...
2007-01-03 2:52 am
your ans. is right but not so good!
In the test or exam, the teacher wouldn't deduct your answers's marks.


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