Answer:9.7491236e+30
Step-by-step explanation:
Answer:
Step-by-step explanation:5,7 3,9
(16-x²)+(4-x) or (-x²+16)+(-x+4)
Combine like terms
(-x²+20-x) or (-x²-x+20)
Here you go! Hopefully it was correct as i used an app called Cymath.Please mark me as Brainliest!