What is this, how do i solve it, what the answer

1

Step-by-step explanation:

This is a function where you have to plug in the value you are given for x.  In this case, you are given 1 as your value (after the semicolon).  So, you set up your equation like so: (1)^3 + 3(1)^2 -7(1) + 4

(1)^3=1

3(1)^2 = 3

-7(1) = -7

4= 4

so you have 1+3-7+4 which is 1

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step-by-step explanati∵∵∴∴on:

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.