Answer:
[tex]-x^4-5x^3+8x^2[/tex]
Step-by-step explanation:
[tex]\left(-x^2\right)x^2+\left(-x^2\right)\cdot \:5x+\left(-x^2\right)\left(-8\right)\\-x^2x^2-5x^2x+8x^2\\-x^4-5x^3+8x^2[/tex]
Answer: −x4−5x3+8x2
