Question

Can someone tell me wat the answer is to this please as it's been so long out of Skl a3+a4=? And a3-a4=?

Answer 1

add and subtract like you normally do

Answer 2

So is that a3+a4=a7 and a3-a4=a-1 then?

Answer 3

-a1

Answer 4

for second one

Answer 5

My teacher said the first one you cannot add and the second you cannot subtract that's why I was so lost

Answer 6

What exactly is the question?

Answer 7

To find the answer to both

Answer 8

All they said was a3+a4?

Answer 9

Yep so I thought I was wrong to add them both to get a7

Answer 10

like 3a+4a?

Answer 11

No a to the power of 3 add to a to the power of 4

Answer 12

oooh you mean
\[a^3+a^4?\]

Answer 13

Yes

Answer 14

\[a^3(a+1)\]
\[a = -1, 0\]

Answer 15

Is this what you wanted? The roots?

Answer 16

You can't add them normally because the exponents are different.

Answer 17

Wats roots

Answer 18

a = -1, and 0

Answer 19

That is your answer for the first one

Answer 20

\[a^3-a^4 => (1-a)a^3\]

\[a = 1, 0\]

Answer 21

^ Answer for the second one