Simplify -3.1+1.2 1.9 -4.3 3.7 4.3

Mathematics

2 answers:

oksano4ka [1.4K]4 years ago

8 0

Add -3.1 and 1.2 to get -1.9
Answer: -1.9 (This is simplified)

Hope this helps! :)

LenKa [72]4 years ago

8 0

-3.1+1.2
pretend you are doing this:" 3.1 - 1.2" Then when you get your answer, attach a negative sign
3.1-1.2=1.9
final answer = -1.9

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$(x+(3+\sqrt{11}i)) (x+(3-\sqrt{11}i))$

Step-by-step explanation:

The first step to this problem is to look at the key features of the initial expression given to us. Namely, the middle term.

Notice that it is just $+6x$ . This indicates that the square root terms cancel out, meaning that their signs need to be opposite, but the threes need to have the same, positive sign. This indicates that our answer is option C, but you should always double check by multiplying the expression out to confirm. Here are the steps:

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