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kap26 [50]
3 years ago
15

Simplify: 5a3 + 3a + 7a3-2a-4a2 A.12a²-4a²-a B.12a²-4a²+a C.2a²-4a²+a D.8a²+a​

Mathematics
1 answer:
vova2212 [387]3 years ago
3 0

Answer:

<h2>It is B) 12a^3 - 4a^2 + a </h2>

Step-by-step explanation:

5 {a}^{3}  + 3a + 7 {a}^{3}  - 2a - 4 {a}^{2}  \\  \\ (5 {a}^{3}  + 7 {a}^{3} ) +   ( - 4 {a}^{2} )  + (3a  -  2a \: ) \\  \\ 12 {a}^{3}  - 4 {a}^{2}  + a

I hope that is useful for you :)

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