Question

expand 2-x[2+x][4+x^2]
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Answer 1

Step-by-step explanation:

2 - x[ 2 + x][4 + x²]

2 - [2x + x²][4+x²]

2 - [ 8x + 2x³ + 4x² + x⁴]

2 - 8x - 2x³ - 4x³ - x⁴

Answer 2

Answer:

− $x^{4}$  − 2x³  −4x²  − 8x  + 2

Step-by-step explanation:

2 - x (2 + x) (4 + x²)

⇒2 - x (x + 2) (4 + x²)

⇒2 - x (x + 2) (x² + 4)

⇒2 - {(x² + 4) · x² + 2x (x² + 4)}

⇒2 - {$x^{4}$ + 4x² + 2x (x² + 4)}

⇒2 - ($x^{4}$ + 4x² + 2x³ + 8x)

⇒2 - ($x^{4}$ + 2x³ + 4x² + 8x)

⇒2 - $x^{4}$ - 2x³ - 4x² - 8x

⇒− $x^{4}$  − 2x³  −4x²  − 8x  + 2

-$Shahrin$ $Khan$