The answer is 3150 :)
BODMAS
brackets, division, multiplication, addition, subtraction
Answer: x=-1,5.
Step-by-step explanation:

Formula for perimeter of a square: P = 4a
Formula for area of a square: A = a²
a is given as:
19
Plug this value for a into the above formulas to solve for perimeter and area.
P = 4a
P = 4(19)
P = 76
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A = a²
A = 19²
A = 361
Answer:
P = 76 units; A = 361 units².
Rational functions of the form
f(x)= polynomial in x / another polynomial in x
See example plot attached.