Question

help i did this but it saids my answer is incorrect any help thanks:


((a4)/(2a2-4a4))*((8a3+1)/(2a+4a2))

Final result :

-a • (4a2 - 2a + 1)
———————————————————
4 • (2a2 - 1)

Answer 1

is that a^4

Answer 2

Is this your original form?
\[
\frac{a^4 \left(8
a^3+1\right)}{\left(4 a^2+2
a\right) \left(2 a^2-4
a^4\right)}
\]

Answer 3

just use this formula\[a ^{3}+b ^{3}=(a+b)(a ^{2}+b ^{2}-ab)\]

Answer 4

May be they expect you to put your answer like what I found
\[
\frac{a^4 \left(8
a^3+1\right)}{\left(4 a^2+2
a\right) \left(2 a^2-4
a^4\right)}=\frac{a \left(4
a^2-2 a+1\right)}{4-8 a^2}
\]

Answer 5

Your answer is correct. It is the same as mine.