Answer:It is -6, 0
Step-by-step explanation:
Answer:-288
Step-by-step explanation:
Given
First term
is common for both AP and GP
For AP
---1
----2
From 1 & 2 we get
d=4

for AP

For GP
----3
----4
From 3 & 4 we get



For 

Answer:469.08
Step-by-step explanation:
Answer:
81-25k²
Step-by-step explanation:
We need to write the expression for "The quantity 81 minus 5k, squared".
Square of any number x is given by x².
Square of 5k is given by : (5k)²= 5²×k²=25k²
Now subtract 25k² from 81.
It means we get : 81-25k². It is required expression.
33.3..........................................