ummmm

[Enter]

Need help on few probs:

Evaluate:

cd[d^2-c] if d= -1 and c= 2

Another one:

Expand by means of the distributive property:

a) 8a(3b-c)

b) 3x^2(2xy + 4y^3)

 

[tkhunny]

Need help on few probs:

Evaluate:

cd[d^2-c] if d= -1 and c= 2

What are your thoughts?

You have c and d. Plug them in (substitute).

d^2 = (-1)^2 = 1

d^2 - c = 1 - 2 = -1

cd = c*d = (2)*(-1) = -2

cd[d^2-c] = (-2)*(-1) = 2

Just work the pieces and put them back together. Or, you can do it all at once if you are careful.

you do the next one.

 

[Enter]

dude i dont get it

 

[Denis]

If you don't "get" what TK showed you, then there's nothing
that can be done for you here; you need to LISTEN in class...

 

[tkhunny]

Please go have a very serious chat with your teacher.

 

[Gene]

He can't do that. His teacher doesn't talk to trolls. Santa told me so.