By the binomial theorem,

where

Then the coefficients of the
terms in the expansion are, in order from
to
,





Step-by-step explanation:
so sorry
don't know but please mark me as brainliest please
Answer:
first one is 82% second is 214%
Step-by-step explanation:
Step 1: Divide 288 by 351 to get the number as a decimal. 288 / 351 = 0.82
Step 2: Multiply 0.82 by 100. 0.82 times 100 = 82
Step 1: Divide 212 by 99 to get the number as a decimal. 212 / 99 = 2.14
Step 2: Multiply 2.14 by 100. 2.14 times 100 = 214
4.2% of 50 is 2.1
So 2.1 is your answer