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madam [21]
2 years ago
9

I need a fast reply please​

Mathematics
1 answer:
EastWind [94]2 years ago
4 0

\implies {\blue {\boxed {\boxed {\purple {\sf {  \:A. \:- 8 {b}^{4}  + 10 {b}^{3}  + 10b}}}}}}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

(7b + 7 {b}^{3}  - 6 {b}^{4} ) + (3 {b}^{3}  + 3b - 2 {b}^{4} )

➼\: 7b + 7 {b}^{3}  - 6 {b}^{4}  + 3 {b}^{3}  + 3b - 2 {b}^{4}

Combining like terms, we have

➼\:  - 6 {b}^{4}  - 2 {b}^{4}  + 7 {b}^{3}  + 3 {b}^{3}  + 7b + 3b

➼\: - 8 {b}^{4}  + 10 {b}^{3}  + 10b

\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

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