http://math.uc.edu/course/placement/sample/exam/level2.htm

question 4. how would i solve it?

Question

http://math.uc.edu/course/placement/sample/exam/level2.htm

question 4. how would i solve it?

anonymous · Answer

-3x^2y(xy^2-2y-1)

anonymous · Answer

is that what your solving? hah

anonymous · Answer

Oops, sorry wrong question

anonymous · Answer

haha its fine. do you know how to solve that one though?

anonymous · Answer

For question 4, all you are doing this distributing (Multiplying each term inside by outside term)

anonymous · Answer

woudld the answer be A?

anonymous · Answer

$$-3x^2y *\text{xy}^2+-2y*-3x^2y +-1*-3x^2y $$

anonymous · Answer

I got this, if I didn't make any error:
$$3 x^2 y+6 x^2 y^2-3 x^3 y^3$$

anonymous · Answer

so it would be b?

anonymous · Answer

Yes, that would seem so

anonymous · Answer

how would i solve it? its just distributiing?

anonymous · Answer

Yes, just multiply outside term by every term inside the parenthesis

anonymous · Answer

the -3x^2y i multiple it with everyting?

anonymous · Answer

Yes

anonymous · Answer

when an exponent is being multiplied does it stay the same do i add them together or multiply them?

anonymous · Answer

You add them
$$x^a * x^b=x^{a+b}$$

anonymous · Answer

$$(x^a)^b=x^{a b}$$

anonymous · Answer

with these exponents though ^2(^2) that would be 4 or would it stay 2?

anonymous · Answer

do you mean
$$(x^2)^2=x^4$$

anonymous · Answer

yeah thank you for answering!

anonymous · Answer

im probs going to have more questions so feel free to answer more if you want to

anonymous · Answer

ok