Multiply. Simplify your answer.

Question

1. (n + 3/n- 5) x (n^2 - 5n)

A: n^2 + 3n

2. (6xy^2/2x^2y^6) x (6x^4y^4/9x^3)

A: 2

3. (3h^3 - 6h/10g^2) x (4g/g^2 - 2g)

(There is no typo.)

A: ?

4. (m^2 + m - 2/m^2 - 2m - 8) x (m^2 -8 + 16/3m -3)

(There is no typo.)

A: (m-4)/3

Add or subtract. Simplify your answer.

5. (15)/(2p) - (13)/(2p)

A: 2/2p or p?

6. (3m^2)/(4m^5) + (5m^2)/(4m^5)

A: 2m

7. (x^2 + 8x)/ (x - 2)/ (3x + 14)/ (x - 2)

A: (x + 7)

8. (2t)/(4t^2) + (2)/(t)

A: 10t^2/t^2 or 10?

9. (m^2 - m - 2)/ (m^2 + 6m +5) - (2)/(m + 5)

A: ?

10. (4x)/(x-2) + (3x)/ (2 - x)

A: ?

Answer 1

No one is going to do it for you.
You supposed to try, then ask for help or if you want your answers checked.

Answer 2

I don't know the answers to only three of the expressions I have posted. The rest are the answers that must be checked.

Answer 3

#1 and #2 ok

#3, I agree with you, there is little that can be done
All I could see is to divide top and bottom by 2g

#4 ok
#5, careless error, 2/2p = 1/p , not p

#6 you have a common denominator, so
add them
8m^2/(4m^5) = 2/m^3

#7, according to BEDMAS, division is done in the order it comes,
e.g.
60÷2÷3÷5
=30÷3÷5
= 10÷5
= 2
note 60÷2÷3÷5 = 60/(2x3x5) = 2

so, your question:
(x^2 + 8x)/ (x - 2)/ (3x + 14)/ (x - 2)
= x(x+8)/( (x - 2)(3x + 14)(x - 2) )
that's about it

#8
2t/(4t^2) + 2/t
= 1/2t = 4/2t
= 5/(2t)

#9,
(m^2 - m - 2)/ (m^2 + 6m +5) - (2)/(m + 5)
= (m-2)(m+1)/( (m+1)(m+5) ) - 2/(m+5)
= (m-2)/((m+5) + 2/(m+5)
= m/(m+5)

#10
4x/(x-2) + 3x/(2-x)
= 4x/(x-2) - 3x(x-2)
= x/(x-2)