Ok, it' s me again, LOL! I need to simplify one now and don't get it:) (-3y^3)^4. I think I work the inside first and got -27y but is that (-27y)^4 now?

Question

Ok, it' s me again, LOL!  I need to simplify one now and don't get it:)  (-3y^3)^4.  I think I work the inside first and got -27y but is that (-27y)^4 now?

unklerhaukus · Answer

$$(-3(y)^3)^4$$or$$((-3y)^3)^4$$

anonymous · Answer

Ok, I'm looking at it..

anonymous · Answer

Ok, I understand the first one but how is it simplified?  Is it -27y to start with?

anonymous · Answer

either 27 is not a likely answer

anonymous · Answer

$$\left( -3(y)^{3} \right)^{4}=81y ^{12}$$

anonymous · Answer

Ok, you multiplied the exponents too

anonymous · Answer

and then it's -3y ^12?  I can't remember how the minus sign goes away?

anonymous · Answer

(-3y)^12

anonymous · Answer

I'm looking for the exponent key on my calc.:(

anonymous · Answer

I don't think I am expected to go further, further simplify

anonymous · Answer

thanks for your help, I appreciate this place so much!

anonymous · Answer

my instructor has us go out and buy a 23 dollar calc. and then doesn't teach us to use it:(

anonymous · Answer

for ((-3y)^12 =531, 441y^12....I don't suppose they want all those digits

anonymous · Answer

nah, that is good enough I'm sure

anonymous · Answer

you should have the following in your calculator $$x^{2} $$ to quare # and symbol ^ for higher exponents