anonymous
  • anonymous
9b^3=7b-5(9b^3-2b)= I have no idea
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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IsTim
  • IsTim
Ok, so first multiply (9b^3-2b) by 5.
IsTim
  • IsTim
Now, subtract 9b^3 from both sides.
anonymous
  • anonymous
9b^3=17b-45b^3

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anonymous
  • anonymous
so the first step would it be -45b^3=10b
IsTim
  • IsTim
Why the equal sign? IT's still a part of its original equation.
anonymous
  • anonymous
sorry it should be a + sign
anonymous
  • anonymous
i got 9b^3-45b^3=3b which would simplify to -36b^3=3b
IsTim
  • IsTim
Whoops sorry. I actually would't know; I can only do this on paper.
IsTim
  • IsTim
What happened to 7b and 2b (which was in the brackets)?
anonymous
  • anonymous
sorrrrrrrrrrrrrry no wounder i'm confused i wrote wrong problem it should be 9b^3+7b-5(9b^3-2b)
IsTim
  • IsTim
Next time please just enter the formula correctly. The humour in the question is appreciated, but makes the question confusing.
IsTim
  • IsTim
And is it 0=9b^3+7b-5(9b^3-2b)? That would make a lot more sense.
IsTim
  • IsTim
Hello?
anonymous
  • anonymous
Im sorry im flipping from page to page and wrote it wrong but how did you get that cuz i got -36b^3+17b
IsTim
  • IsTim
No, no, yours sounds right. What I said it just the type of formula that it would be formatted at the beginning. I fully believe that your answer is probably correct. I myself can't check; sorry. I'm overwhelmed with work at my end.
anonymous
  • anonymous
oh no problem i thought you ment it =0 i was like OMG what did i do wrong lol
IsTim
  • IsTim
Ok. Well, good luck with your other questions then! I didn't really do much this round; nice work.

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