3questions 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)

1)  

2)  

3)  

Step-by-step explanation:

Given the expression we have to simplify the expression

1)  

⇒

Combining like terms, we get

⇒

2.)    

⇒

⇒

3.)  

⇒

⇒

29 is the correct answer

step-by-step explanation:

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5