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lamechildidc
 one year ago
Can somebody please help me :/
Simplify (8j^3 – 10j^2 – 7) – (6j^3 – 10j^2 – j + 12).
(I got the first one but I'm not sure)
2j^3 – 20j^2 – j + 5
2j^3 + j – 19
2j^3 – 20j^2 + j – 19
2j^3 – j + 5
lamechildidc
 one year ago
Can somebody please help me :/ Simplify (8j^3 – 10j^2 – 7) – (6j^3 – 10j^2 – j + 12). (I got the first one but I'm not sure) 2j^3 – 20j^2 – j + 5 2j^3 + j – 19 2j^3 – 20j^2 + j – 19 2j^3 – j + 5

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1here we have to sum similar terms, and we have to apply the distributive property of multiplication over addition , in order to cancel the parentheses, so we can rewrite your expression as below: \( (8j3 – 10j2 – 7) – (6j3 – 10j2 – j + 12)= 8j36j3 10j2+10j2+j 712=...\)

lamechildidc
 one year ago
Best ResponseYou've already chosen the best response.0Okay i understand that and then i combined like terms and got the first answer

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1please, first combine like terms, and write what you get

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we have: \(10j^2+10j^2=0\)

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1and \(712=19\)

lamechildidc
 one year ago
Best ResponseYou've already chosen the best response.0So it would be B then?

lamechildidc
 one year ago
Best ResponseYou've already chosen the best response.0Okay thank you I just got really confused because I know you have to switch the signs but idk lols thanks :)
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