Question

1). 4x - (2x - 15)
2). -8 + 9x (-4 + 12x)
3). 15 - 14 ( 1 + 4x )

Answer 1

• 1). 4x - (2x - 15)

=> 4x - 2x + 15

=> 2x + 15

• 2). -8 + 9x (-4 + 12x)

=> -8 - 36x + 108x²

• 3). 15 - 14 (1 + 4x)

=> 15 - 14 - 56x

=> 1 - 56x

Explanation:

Hoped this helped.

Answer 2

`\sf 1)\: 4x-\left(2x-15\right)`

Apply Distributive property:

`\sf 4x-2x+15`

Combine like terms:

`\boxed{\sf 2x+15}`

_____________

`\sf 2)\:-8 + 9x (-4 + 12x)`

Apply Distributive property:

`\boxed{\sf -8-36x+108x^2d}`

_______________

`\sf 3)\: 15 - 14 ( 1 + 4x )`

Apply Distributive property:

`\sf 15-14-56x`

Subtract numbers:

`\boxed{\sf 1-56x}`

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