Question

a positive no. is 3 times another no. if 45 is added to both the nos.,then one of the new number becomes twice the other new no. what are the nos.​

Answer 1

Answer:

see the attachment

Step-by-step explanation:

By remainder theorem

x+1=0

x=−1

p(x)=x

3

+3x

2

−3x−1p(−1)

=(−1)

3

+3(−1)

2

−3(−1)−1

=−1+3(1)+3−1

=−1+3+3−1

=6−2

=4

Thus remainder is 4