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Work is provided in the image attached.
It was multiply (z - 12) by 2 because you have to multiply everything in the parentheses
get the point of discontinuity we proceed as follows;
f(x)=x+5/x^2+3x-10
f(x)=4x+5x^2-10
this can be written is such a way that they have the same denominator, here we shall have:
f(x)=(4x^3-10x^2+5)/x^2
The denominator= x^2
The numerator=4x^3-10x^2+5
The discontinuity is at the point x=0
the removable discontinuity is the the point x=2
Answer:
20 people
Step-by-step explanation:
yes