Question

Question in picture.

Answer 1

• 4) 5x²- 12x - 2

Explanation:

`\mathrm{2\left(x^2-1\right)+3x\left(x-4\right)}`

Expand:-

`\mathrm{2x^2-2+3x^2-12x}`

Combine like terms:-

`\mathrm{2x^2+3x^2-12x-2}`

`\mathrm{5x^2-12x-2}`

Therefore, 4) 5x²-12x-2 is your answer!

__________________

Hope this helps!

Answer 2

option 4

Explanation:

2(x² - 1) + 3x(x - 4) ← distribute both parenthesis

= 2x² - 2 + 3x² - 12x ← collect like terms

= (2x² + 3x²) - 12x - 2

= 5x² - 12x - 2