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Mathematics 15 Online
OpenStudy (anonymous):

Can someone help me with this? (4a+3b)-(-2a-3b)

OpenStudy (anonymous):

what are we solving for? just simplifying?

OpenStudy (anonymous):

would it look like this? 4a+3b-2a-3b

OpenStudy (anonymous):

nope when you have -(-2a-3b) you have to distribute the negative side throughout the paranthesis... -(-2a-3b) == +(2a +3b) so you end up with 4a+3b+2a+3b hope this helps you understand!

OpenStudy (anonymous):

6a^2 + 6b^2

OpenStudy (anonymous):

is that your answer?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

6a + 6b

OpenStudy (anonymous):

that is incorrect we do not square a and b because we are adding, not multiplying

OpenStudy (anonymous):

@mysticalfire

OpenStudy (anonymous):

oh ok so only when multiplying you square

OpenStudy (anonymous):

@mysticalfire correct

OpenStudy (anonymous):

thank you @robz8 !

OpenStudy (anonymous):

you're welcome! @mysticalfire

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