Please help! 3 Questions please show how you solved the problem
1. Subtract & simplify
(–y2 – 4y – 8) – (–4y2 – 6y + 3)

2.Multiply and simplify
2x2y3z2 · 4xy4x2

3.Multiply and simplify
(x – 4) (x2 – 5x – 6)

Respuesta :

Answer:

1)  [tex](-y^2-4y-8+4y^2+6y-3)[/tex]

2)  [tex]32x^5y^4z^2[/tex]

3)  [tex]x^3-9x^2+14x+24[/tex]

Step-by-step explanation:

Given the expression we have to simplify the expression

1)   [tex](-y^2-4y-8)-(-4y^2-6y+3)[/tex]

⇒ [tex](-y^2-4y-8+4y^2+6y-3)[/tex]

Combining like terms, we get

⇒ [tex]3y^2+2y-11[/tex]

2.)    [tex](2x^2y^3z^2)(4xy.4x^2)[/tex]

⇒ [tex](2x^2y^3z^2)(16x^3y)[/tex]

⇒ [tex]32x^5y^4z^2[/tex]

3.)   [tex](x-4)(x^2-5x-6)[/tex]

⇒ [tex]x^3-5x^2-6x-4x^2+20x+24[/tex]

⇒ [tex]x^3-9x^2+14x+24[/tex]