Question

please answer me please​

Answer 1

Answer:

You have to first multiply the entire equation by 8.

You will get 16x2 - 8x + 1

Now use sum product.

You need to find 2 numbers such that sum is -8 and product is 1

think and tell..

If you didn't get use this formula

Given f(x)=∑∞n=1anxn converges in (−R,R). How do I show that

∑n=1∞ann+1xn+1

converge in (−R,R)?

My idea is to show

∣∣∣∣∑k=m+1nakk+1xk+1∣∣∣∣≤R∣∣∣∣∑k=m+1nakxk∣∣∣∣

But I am not sure if that inequality holds for x∈(−R,R).

Answer 2

Answer:

zeroes are 1/4 & 1/4

Step-by-step explanation:

see in the photo

HOPE IT HELP YOU