Simplify the following 3x( - 2 {x}^(2) - 4x) + 6 {x}^(3) + 5 {x}^(2) ​

Question

Simplify the following


`3x( - 2 {x}^(2) - 4x) + 6 {x}^(3) + 5 {x}^(2)`
​

Answer 1

• - 7x²

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Simplify the expression.

First distribute, then collect like terms:

• 3x(- 2x² - 4x) + 6x³ + 5x² =
• - 6x³ - 12x² + 6x³ + 5x² =
• ( - 6x³ + 6x³) + ( - 12x² + 5x²) =
• - 7x²