Respuesta :

Answer:

20

Step-by-step explanation:

Given function f(x)=[tex]\[x^{2}-x\][/tex]

We need to find f(-4) which means we need to find the value of the function when x=-4 .

On substituting x=-4 in the given function:

f(-4)=[tex]\[-4^{2}-(-4)\][/tex]

Square of -4 is 16.

Hence, f(-4)=[tex]\[16+4\][/tex]

=[tex]20[/tex]

Hence the value of the given function f(x)=[tex]\[x^{2}-x\][/tex] when x=-4 is 20.

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