NLM-CAB would be the right answer
12-9=3
3+12+4,5=19,5
19 hours and 30 min
Answer:
-9x^3+4x^2+5
Step-by-step explanation:
(6x^2 - 3 - 5x^3) - (4x^3 +2x^2 - 8)
distribute the minus sign
(6x^2 - 3 - 5x^3) - 4x^3 -2x^2 + 8
Combine like terms
-5x^3 -4x^3 +6x^2 - 2x^2 -3 +8
-9x^3+4x^2+5
- 5 and -4 are coefficients, so the product is (-5)(-4) = 20