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Perform the operations.
(4.3a^2 + 1.6a − 4.3) − (2.7a^2 − 3.3a + 11.8)
 one year ago
 one year ago
Perform the operations. (4.3a^2 + 1.6a − 4.3) − (2.7a^2 − 3.3a + 11.8)
 one year ago
 one year ago

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funinaboxBest ResponseYou've already chosen the best response.1
add and subtract like terms. But first, distribute that negative. 4.3a^2 + 1.6a − 4.3 − 2.7a^2 + 3.3a + 11.8 add/subtract together the a^2's, then add/subtract the a's, and add subtract the plain numbers. whatever you have left, assemble together and that's your answer!
 one year ago

funinaboxBest ResponseYou've already chosen the best response.1
4.3a^2 + 1.6a − 4.3 − 2.7a^2 + 3.3a  11.8 **it should be like this, not what i have written in the other post.
 one year ago

algebra2sucksBest ResponseYou've already chosen the best response.1
7a^2 + 1.7a  7.5?
 one year ago

funinaboxBest ResponseYou've already chosen the best response.1
Not quite. You can write it a different way to make it more simple: (4.3a^2  2.7a^2) + (1.6a + 3.3a) + (4.3  11.8) add/subtract the a^2, the a, and the constants. make sure to watch out for positive/negative signs
 one year ago

funinaboxBest ResponseYou've already chosen the best response.1
If you don't want to deal with the decimals, you could multiply everything by 10. Then you would have: (43a^2  27a^2) + (16a + 33a) + (43  118) which is a bit easier to visualize
 one year ago

algebra2sucksBest ResponseYou've already chosen the best response.1
1.6a^2 + 4.9a + 7.5?
 one year ago

funinaboxBest ResponseYou've already chosen the best response.1
very close. everything except the 7.5 is right. look at it a bit more closely: 4.3  11.8, or 43  118 it isn't 118  43, and it isn't 43 + 118 Both numbers are negative. Another way to think about it: 43 + 118 well, 43 + 118 is 161. But it's negative so 161 And it's a decimal too, so it's 16.1
 one year ago

algebra2sucksBest ResponseYou've already chosen the best response.1
check my answer for this one? (8a2 − 4a) + (−5a2 + 6a + 2) i got 3a^2 + 2a + 2 is that right?
 one year ago

funinaboxBest ResponseYou've already chosen the best response.1
sorry internet is going very slow, or this website is. your answer is correct.
 one year ago

algebra2sucksBest ResponseYou've already chosen the best response.1
thanks for the help
 one year ago
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