Question

Please help me with this math question!

Answer 1

a= -24

b= 23

Explanation:

(-4-7i)(-1-4i)

4+16i+7i-28

-24i+23i

Answer 2

Explanation:

To write the expression (-4-7i)+(-1-4i) in a+bi form, we need to simplify the expression by adding the real parts and the imaginary parts separately.

(-4-7i)+(-1-4i) = -4 - 1 - 7i - 4i = -5 - 11i

Therefore, (-4-7i)+(-1-4i) can be written in a+bi form as -5 - 11i.