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algebra2sucks
 2 years ago
Perform the operations.
(4.3a^2 + 1.6a − 4.3) − (2.7a^2 − 3.3a + 11.8)
algebra2sucks
 2 years ago
Perform the operations. (4.3a^2 + 1.6a − 4.3) − (2.7a^2 − 3.3a + 11.8)

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funinabox
 2 years ago
Best ResponseYou've already chosen the best response.1add 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!

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.14.3a^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.

algebra2sucks
 2 years ago
Best ResponseYou've already chosen the best response.17a^2 + 1.7a  7.5?

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.1Not 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

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.1If 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

algebra2sucks
 2 years ago
Best ResponseYou've already chosen the best response.11.6a^2 + 4.9a + 7.5?

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.1very 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

algebra2sucks
 2 years ago
Best ResponseYou've already chosen the best response.1check my answer for this one? (8a2 − 4a) + (−5a2 + 6a + 2) i got 3a^2 + 2a + 2 is that right?

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.1sorry internet is going very slow, or this website is. your answer is correct.

algebra2sucks
 2 years ago
Best ResponseYou've already chosen the best response.1thanks for the help
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