anonymous
  • anonymous
4y^2-3{2y^2-[(4y^2 - y + 2) - (3y^2 + 2y - 5)]}
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
okay imm stuck on a part
anonymous
  • anonymous
Heres my work : 4y^2 (- 6y2) (-12y^2 - 3y + 6) (-9y^2 + -6y) (-15) (4y^2 - 6y^2 - 12y^2 - 9y^2) (-3+-6y) (6 - (-15)
anonymous
  • anonymous
this is tricky

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anonymous
  • anonymous
(-3 + 6y) is supposedd to be (-3y + -6y) I collected the like terms, but i think im doing something wrong. the answer is supposed to be y^2 - 9y +21
anonymous
  • anonymous
so whats the objest we have to get?
anonymous
  • anonymous
just simplifying
anonymous
  • anonymous
ok
anonymous
  • anonymous
(16y-36y-144y-81y)(-9y)(21)
anonymous
  • anonymous
k got it almost simplied
anonymous
  • anonymous
I have to multiply it? lol ahh omg i was trying to add / subtract
anonymous
  • anonymous
lol
anonymous
  • anonymous
is it because of the y^2?
anonymous
  • anonymous
and yes
anonymous
  • anonymous
the answer sheet says its supposed to be y^2 - 9y + 21
anonymous
  • anonymous
well i have the 9y+21 part
anonymous
  • anonymous
what i did was subtract 4y2 - 6y2 and it gave me 2 and then 12y2 - 9y2 and it gave me 3 and i subtracted that and it gave me -y2 but it doesnt sound right
anonymous
  • anonymous
because the y2 is supposed to be positive
anonymous
  • anonymous
no no thats right
anonymous
  • anonymous
it turns postive
anonymous
  • anonymous
oh whaat the heck lol...
anonymous
  • anonymous
ya
anonymous
  • anonymous
thanks :)
anonymous
  • anonymous
so u should have y^2-9y+21
anonymous
  • anonymous
thx for medal
anonymous
  • anonymous
yup.. but okay if i subtracted 12 - 9 its 3 right and 4-6 -2? -2 - 3 = 5?
anonymous
  • anonymous
yw
anonymous
  • anonymous
i gtg play some destiny on my ps4
anonymous
  • anonymous
peace
anonymous
  • anonymous
i have a question about getting y^2...
anonymous
  • anonymous
i can help you with that awser
anonymous
  • anonymous
what i did was (-2y^2 + 3y^2) and got y^2 is that correct?
anonymous
  • anonymous
but i dont get it because i worked it out and it said 4y^2 - 6y^2 -(-12y^2 - 3y + 6) - (9y^2 - (-15)
anonymous
  • anonymous
4y2−3(2y2−(4y2−y+2−(3y2+2y−5))) Distribute: =4y2+(−3)(2y2)+(−3)(−4y2)+(−3)(y)+(−3)(−2)+(−3)(3y2)+(−3)(2y)+(−3)(−5) =4y2+−6y2+12y2+−3y+6+−9y2+−6y+15 Combine Like Terms: =4y2+−6y2+12y2+−3y+6+−9y2+−6y+15 =(4y2+−6y2+12y2+−9y2)+(−3y+−6y)+(6+15) =y2+−9y+21 Answer: =y2−9y+21
anonymous
  • anonymous
thanks !
anonymous
  • anonymous
yup

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