The polynomial 
has a unique root, 
, for any .
Hence
is a polynomial with roots 
and 
Hence
2. The coach of a cricket team buys 3 bats and 6 balls for 3900. Later, she buys another
2 answers:
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<u><em>Answer:</em></u>
70
<u><em>Explanation:</em></u>
Assume that the number we are looking for is x
one tenth is interpreted into
Now, we know that one tenth of the number is 7, this means that:
* x = 7
Solve for x by multiplying both sides of the equation by 10, we get:
* x * 10 = 7 * 10
x = 70
Hope this helps :)