anonymous
  • anonymous
Choose the correct simplification of (2a^2 + 7a − 3) + (4a^2 − 3).
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
A. 6a^2 + 7a B. −2a^2 + 7a − 6 C. −2a^2 + 7a D. 6a^2 + 7a − 6
blurbendy
  • blurbendy
break it down piece by piece again. what is 4a^2 + 2a^2 ?
anonymous
  • anonymous
6a^2

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More answers

blurbendy
  • blurbendy
Yup, you can't match 7a with anything in the other expression, so that stays them same. finally, what is -3 -3 ?
anonymous
  • anonymous
-3 -3 is -6
blurbendy
  • blurbendy
yes, so what answer do you end up with?
anonymous
  • anonymous
D 6a^2 +7a-6
blurbendy
  • blurbendy
That is correct
anonymous
  • anonymous
its easy when somone does it like that with me Thank you again lol
blurbendy
  • blurbendy
No problem!
anonymous
  • anonymous
wait
anonymous
  • anonymous
if i have (x^9)^2 I multiply the exponents right
blurbendy
  • blurbendy
You sure would. You'd get x^18
anonymous
  • anonymous
Okay
blurbendy
  • blurbendy
Yeah, exponents are just about memorizing a bunch of rules. Practice makes perfect
anonymous
  • anonymous
but x^8 over x^3 why dont i multiply that?
anonymous
  • anonymous
I add so only wje its in parenthesis i multiply
anonymous
  • anonymous
when*
blurbendy
  • blurbendy
x^8 / x^3 is division and you ALWAYS subtract x^8 * x^3 is multiplication and you ALWAYS add if you have (x^8)^3 then you multiply because x^8 is being raised to the third power
anonymous
  • anonymous
Ohhh okay i guess i get confused on them
anonymous
  • anonymous
thankss
blurbendy
  • blurbendy
np

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