anonymous
  • anonymous
a^2+6ax-40x^2 factor out
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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myininaya
  • myininaya
A=a^2 B=6ax C=-40x^2 what are two factors of A*C that add up to be B A*C=-40a^2x^2=(10ax)(-4ax) B=10ax-4ax so a^2+10ax-4ax-40x^2 now factor by grouping
anonymous
  • anonymous
what do you mean by grouping
myininaya
  • myininaya
(a^2+10ax)+(-4ax-40x^2)

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myininaya
  • myininaya
what do the terms in the first group have in common? what do the terms in the second group have in common?
anonymous
  • anonymous
nothing...??
myininaya
  • myininaya
?
myininaya
  • myininaya
so there isn't an a in common in the first group? there isn't a -4x in common in the second group?
anonymous
  • anonymous
theres not 2 -4x's so there isnt any -4x in common and theres a^2 and a but those are different they arent the same
myininaya
  • myininaya
both terms in the first group DO have the factor a in common both terms in the second group DO have the factor -4x in common so we have a(a+10x)-4x(a+10x)
anonymous
  • anonymous
so thats the final answer??
myininaya
  • myininaya
we haven't factored it yet factor means numbers being multiplied those two terms are being subtracted (or you could say added) so what does the first term have in common with the second term now?
anonymous
  • anonymous
10x and a???
myininaya
  • myininaya
you mean 10x+a or a+10x right?
anonymous
  • anonymous
suree
myininaya
  • myininaya
ok so factored that out and tell me what you get?
anonymous
  • anonymous
a^2+10x^2??
myininaya
  • myininaya
no try again think can you factor this: 3ax+9x they both have in 3x in common so we can factor 3x out 3x(a+3)
anonymous
  • anonymous
i dotn know how to do any of these i dont know what any of this means i have a 26% in my algebra class and i have about 17 more problems to do and none of this is making sense
myininaya
  • myininaya
ok are problem above we are trying to factor a(a+10x)-4x(a+10x) both terms have a+10x in common so factor it out (a+10x)(a-4x) a was lefted from the first term -4x was lefted from the second term
anonymous
  • anonymous
?????
myininaya
  • myininaya
?????
myininaya
  • myininaya
lol
anonymous
  • anonymous
i have no clue what your talking about iwioth all this stuff matching up and how things are left out and what not
anonymous
  • anonymous
i have no clue what your talking about iwioth all this stuff matching up and how things are left out and what not
myininaya
  • myininaya
it sounds like you need an in-person tutor this is as well as i can explain it online and probably in person maybe you should review some easier forms of factoring first
myininaya
  • myininaya
lol i actually try to explain it to you and others are just giving you answers and you give them medals lol

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