At which root does the graph of f(x) = (x + 4) 6(x + 7)5 cross the x-axis?
0 -7
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the root for which the graph of cross the x-axis i.e. value of y or f(x) = 0 is  .

Step-by-step explanation:

We have , f(x) = (x + 4) 6(x + 7)5 i.e.. We need to find root for which the graph of cross the x-axis i.e. value of y or f(x) = 0. Let's solve this:

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Which means either or , . That means the root for which the graph of cross the x-axis i.e. value of y or f(x) = 0 is or . ∴ From given options , the root for which the graph of cross the x-axis i.e. value of y or f(x) = 0 is  .

the expected value of the random variable : 0, 1 and 2

step-by-step explanation: