g 7. Find Re f and Im f and find their values at the given z. (Both answers should be included) f = z⁄(z + 1), z = 4 − 5

The real and imaginary parts of the result are and , respectively.

Step-by-step explanation:

Let be , the following expression is expanded by algebraic means:

If , then:

Then, the variable is substituted in the equation and simplified:

The real and imaginary parts of the result are and , respectively.

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )