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Linear Algebra 10 Online
OpenStudy (anonymous):

What is the product of (-a + 3)(a + 4)?

OpenStudy (anonymous):

where is your attempt ?

OpenStudy (123qwet12):

I got a\[a ^{2} - a + 12\]

OpenStudy (anonymous):

@123qwet12 review your answer

OpenStudy (123qwet12):

How so?

OpenStudy (123qwet12):

Can you tell me where I went wrong?

OpenStudy (anonymous):

i foiled but idk if thats how im supposed to do it i got -a^2-a-12 idk if i did it right

OpenStudy (anonymous):

@123qwet12 Don't forget that you have : \[-a\times a\] which is : \[-a^2\] not \[a^2\]

OpenStudy (anonymous):

@Alexxxxis You are right !

OpenStudy (123qwet12):

I meant to put -a ^2, but is it still wrong?

OpenStudy (anonymous):

@noura11 so the answers -a^2-a-12?

OpenStudy (anonymous):

@123qwet12 Now, it is correct :)

OpenStudy (anonymous):

@Alexxxxis -12 ?? Why ?

OpenStudy (anonymous):

idk, lol thank you both for the help!

OpenStudy (anonymous):

@Alexxxxis the answer is \[-a^2-a\color{red}+12\]

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