Question

Perform the indicated operation. Be sure the answer is reduced.

d+3/8d -2d+1/10d^2

Answer 1

umm your answer is wrong!

Explanation:

Answer 2

`(d(4d-25))/(40)`

Explanation:

Given:
`d+(3)/(8)d-2d+(1)/(10)d^2`

To find: the value of given expression in reduced form

Solution:

`d+(3)/(8)d-2d+(1)/(10)d^2=(d)/(1)+(3)/(8)d-(2d)/(1)+(1)/(10)d^2`

Here,
`L.C.M(1,8,1,10)=40`

( L.C.M of two or more numbers is the smallest positive number that is their multiple )

So,

`d+(3)/(8)d-2d+(1)/(10)d^2=(d)/(1)+(3)/(8)d-(2d)/(1)+(1)/(10)d^2\\=(40d+15d-80d+4d^2)/(40)\\=(\left ( 40d+15d-80d \right )+4d^2)/(40)\\=(\left ( -25d \right )+4d^2)/(40)\\=(4d^2-25d)/(40)\\=(d(4d-25))/(40)`