Respuesta :

choixongdong
(0.4k^3 – 2.5k) – (2.4k^3 + 3k^2 – 1.2k)
= 0.4k^3 – 2.5k – 2.4k^3 – 3k^2 + 1.2k
=  – 2k^3 – 3k^2 – 1.3k
sortingsteering

Answer: – 2k^3 – 3k^2 – 1.3k

Step-by-step explanation: To solve the given problem we need to group the similar terms and add them (or substract them) as follows:

[tex](0.4k^{3}-2.5k)-(2.4k^{3}+3k^{2}-1.2k)=[/tex]

removing the parentheses and grouping the similar terms we have:

[tex](0.4-2.4)k^{3}-3k^{2} +(-2.5+1.2)k=[/tex]

calculating:

[tex]-2k^{3}-3k^{2} -1.3k[/tex]

Otras preguntas