Chapter 4 Quadratic Functions and Factoring - Chapter Review - Page 321: 33

$$-4 +2i$$

For imaginary numbers, we know that standard form is $a\pm bi$, where $a$ is the real part and $b$ is the imaginary part. To get the expression into this form, we combine like terms like we did with polynomials. Doing this, we find: $$ -4 +(-3+5)i \\ -4 +2i$$