jaylelile
  • jaylelile
I'm confused with simplifying expressions with brackets and parantheses... Can someone give me step by step help with this problem?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Nnesha
  • Nnesha
let's deal with the bracket first whenever u see negative sign outside the paretheses first you should use distributive property \[[(6x ^{2}+3x+2)\color{ReD}{-(3x ^{2}-4x+5)}]-(x ^{2}+4x-5)\] distribute parentheses by negative one
jaylelile
  • jaylelile
\[[(6x ^{2}+3x+2)-(-3x ^{2}-4x+5)]-(x ^{2}+4x-5)\]
Nnesha
  • Nnesha
let's deal with the bracket first whenever u see negative sign outside the paretheses first you should use distributive property \[[(6x ^{2}+3x+2)\color{ReD}{-(-3x ^{2}-4x+5)}]-(x ^{2}+4x-5)\] distribute parentheses by negative one

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jaylelile
  • jaylelile
so after distribution my equation looks like \[[6x ^{2}+3x+2+3x ^{2}+4x-5]-(x ^{2}+4x-5)\]
Nnesha
  • Nnesha
right now combine like terms in the bracket and then distribute parentheses by negative one :=)
jaylelile
  • jaylelile
so the answer I got was \[8x ^{2}+3x+8\]
Nnesha
  • Nnesha
\[[\color{ReD}{6x ^{2}+3x+2+3x ^{2}+4x-5}]-(x ^{2}+4x-5)\] what are like terms in the bracket ?
jaylelile
  • jaylelile
\[6x ^{2} + 3x ^{2} =9x ^{2}, 3x + 4x =7x , 2+ (-5) =3\]
Nnesha
  • Nnesha
hmme 2 +(-5 ) isn't positive 3 remember if the bigger number is negative then answer would be negative :=)
jaylelile
  • jaylelile
so it's -3. is that where I went wrong in my answer?
Nnesha
  • Nnesha
yes ::=)
jaylelile
  • jaylelile
ohhhh so I'm just bad at adding negatives and positives in my head. lol Thank you so much!!!!
Nnesha
  • Nnesha
np :=)
Nnesha
  • Nnesha
good work btw :=)

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