NEED HELP?!

Simplify the following fractions by putting them in lowest terms or by performing the indicated operations.

1) a^4/2a^2 - 4a^4 multiplied by 8a^3+1/2a+4a^2

2) a-ab/a^2 divided by a-1/a^3

3) 9x^2-1/12x^2-12x divided by 9x^2+12x+3/3x^2-6x+3

4) 2a^2/3b multiplied by 15b^2/4a^3 divided by 15b^2/6a^3

Question

NEED HELP?!


Simplify the following fractions by putting them in lowest terms or by performing the indicated operations.

1) a^4/2a^2 - 4a^4 multiplied by 8a^3+1/2a+4a^2

2) a-ab/a^2 divided by a-1/a^3

3) 9x^2-1/12x^2-12x divided by 9x^2+12x+3/3x^2-6x+3

4) 2a^2/3b multiplied by 15b^2/4a^3 divided by 15b^2/6a^3

skullpatrol · Answer

That is 4 questions.

anonymous · Answer

these need to be rewritten. The notation is too vague

skullpatrol · Answer

$$\Huge  \frac{a^4}{2a^2 - 4a^4} *\frac{ 8a^3+1}{2a+4a^2}$$

campbell_st · Answer

start by factoring them 

as a hint 

$$8a^3 + 1$$

is the sum of 2 cubes

and can be factored to 

(2a +1)(4a^2 - 2a + 1)

after factoring the other terms you'ss see common factors that can be removed... 

hope it helps