11/8 or 13/8 is the answer.
Answer:
3,200
Step-by-step explanation:
you would have to multiply then estimate wich round it down an dyou get 3,200
f(x)=-3x^2-1
f(-2)= -3(-2)²-1=-3·4-1= - 13
Equate real part and imaginary part:
LHS:
real part -- 12
imaginary part -- 5y
RHS:
real part = 4x
imaginary part = 25
Equating::
12 = 4x
x = 12/4
x = 3
Again:
5y = 25
y = 25/5
y = 5
So,
x = 3
y = 5
