Question

if a =15 then -a5-16a4+16a3-16a2+16a=?​

Answer 1

Answer:

If a =15 given

-a5-16a4+16a3-16a2+16a=?

with the help of BODMAS we will solve this so,

putting the value of a in this so we will find

-(15×5)-(16×15×4)+(16×15×3)-(16×15×2)+(16×15)

-75-960+720-480+240

-75-960-480+960

-1515+960

-555

Answer 2

Answer:

a= 15

-a5-16a4+16a3-16a2+16a

= 15x5-16x15x4-16x15x3+16x15x2+16x15

= -885