Question

Simplify...
(5a^3 + 6a) + (-3a^2 - 5a)

Answer 1

step 1 ... take off bracket.

Answer 2

and you'll have:
\(\LARGE 5a^3+6a-3a^2-5a\)

Answer 3

now what can we do ? :)

Answer 4

@Kreshnik 5a^3 + 3a^2 - a

Answer 5

well, quite close.
Just sign of \(\LARGE 3a^2\) must be negative and sign of "a" is positibe

Answer 6

because you have:

\[\LARGE 5a^3+6a-3a^2-5a=\]
\[\LARGE 5a^3+(6-5)a-3a^2=\]
\[\LARGE 5a^3+1a-3a^2=\]
\[\LARGE 5a^3+a-3a^2=\]

Answer 7

@Kreshnik Thanks

Answer 8

no sign of 3a2 must be negative becoz (-3a)^2 will be 3a2

Answer 9

@cesar2462 My pleasure xD
@d.t. note.. you have \(\LARGE -3a^2\) not \(\LARGE (-3a)^2\)

Answer 10

according to you... @d.t. we wouldn't even have 3a^2 it would be 9a^2 ! :)

Answer 11

oh ...i got it thanks

Answer 12

Nvm

Answer 13

Anyone