factor the trinomial 12x^2y^2+11xy^2-15y^2
\[12x^2y^2+11x^2-15y^2\] Okay so first you want to multiply the first and last number So 12 times -15 = -180 -180 is your product. The 11 is your sum. So you use trial and error to find two numbers that when multiplied equal -180 and when those same two numbers are added they equal 11.
If you can't figure it out in a few minutes I'll give you the answer but at least try first please.
your missing part of the problem^^
first you take out y^2 so you have y^2(12x^2+11x-15) and factor that like she said
Ah yes :p I had that written on my paper just forgot to type it up lol
ey do you guys want me to present the answer choices if that helps your answer
yes
if you have choices why dont you foil them to see if you end up with the equation
a) (3x+5y)(4x-3y) b)y^2(x+5)(12x-3) c)(4x+5y)(3x-3y) d)y^2(3x+5)(4x-3)
I agree with @bannemohr you could just FOIL the answers to find which is correct. Do you know how to do that? I'll give you a hint though, the answer is either B or D
im thinking its b
Foil it and check..
foil it and find out
wat does foiling something mean. im new to this
ok (x+5)(12x-3) you multiply x with the 12x to get 12x^2 then multiply the 5 with the 12x to get 60x then multiply the x and -3 to get -3x and lastly the 5 and -3 to get -15 so it would be 12x^2+60x-3x-15 then combine like terms
its d
FOIL is First Outside Inside Last so say you have (4x+2)(5x+6) you would do First multiply 4x times 5x to get 30x^2 Then Outside 4x times 6 = 24x Then Inside 2 times 5x = 10x Then Last 2 times 6 = 30 and put the positive or negative signs in between so for this example equation you would get 30x^3 + 24x + 10x + 30
yea I understand
have anymore problems you can message me
ok
Welcome to Openstudy!
Join our real-time social learning platform and learn together with your friends!