Answer:
-x.(3x^2+4)
Step-by-step explanation:
Brain-list?
Answer:
9
Step-by-step explanation:
perfect square sholud be 
so (w+3)*(w+3) is perfect square and extention of it is =>w*w+6w+9
Answer:
First find what to sing about. Next get your rythim. Last get the lyrics together.
Step-by-step explanation:
Answer:
Im only in middle school, sorry
Step-by-step explanation:
I have tips tho!
always write information down, only useful ones, and not like "jimmy love to play basketball" kin of stuff.
Think it through, dont just guess.
Hope this helps i guess,
-yuko
Using Pythagoras:
12^2+5^2= 144+25=169
√169= 13