In the given problem, apply your knowledge in algebraic expression and basic mathematics especially in solving polynomials.
1. Add (2a² - 3bc - 4d) and (-5a² - 10bc + 2d)
(2a² - 3bc - 4d) + (-5a² - 10bc + 2d)
Add the similar terms and consider the integers sign.
2a² + (-5a²) = -3a²
(-3bc) + (-10bc) = -13bc
(-4d) + (2d) = -2d
Answer: -3a² - 13bc - 2d
2. Subtract (2x³ - 6) from (5x + 8)
(2x³ - 6) from (5x + 8) → (5x + 8) - (2x³ - 6)
Consider the zero term and integers sign.
(5x + 8) - (2x³ - 6)
0x³ - 2x³ = - 2x³
5x - 0x = 5x
8 - 6 = 2
Answer: -2x³ + 5x + 2
Learn more about adding polynomials here at
https://brainly.ph/question/11462780
#CarryOnLearning
#BRAINLYFAST
