Question

3. Subtract x³ - 2x² from x²-6.

Answer 1

`\red{3 {x}^(2) - {x}^(3) - 6 }`

Explanation:

`{x}^(2) - 6 - ( {x}^(3) - 2 {x}^(2))`

First, solve the brackets.

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

Combine like terms.

`3 {x}^(2) - {x}^(3) - 6`

Answer 2

- x³+3x²-6

Explanation:

a - b means

b-a

x²-6-( x³ - 2x²)

Distribute the minus sign

x²-6 - x³ + 2x²

Combine like terms

- x³+3x²-6