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Mathematics 8 Online
OpenStudy (anonymous):

Find the sum. (2x^2 - 5x + 2) + (x^2 - 2x + 5) A. 3x^2 - 7x + 7 B. 3x^2 - 3x + 7 C. 2x^2 + 3x + 7

myininaya (myininaya):

combine like terms these are terms with the same varible part

myininaya (myininaya):

\[2x^2+x^2-5x-2x+2+5\]

myininaya (myininaya):

now add

OpenStudy (anonymous):

\[3x ^{2}?\]

myininaya (myininaya):

ok what about the -5x-2x part?

myininaya (myininaya):

and the 2+5 part?

OpenStudy (anonymous):

\[3x ^{2}-7+7\]

myininaya (myininaya):

you are missing something for the middle term

OpenStudy (anonymous):

I am?

myininaya (myininaya):

x?

myininaya (myininaya):

3x^2-7x+7

OpenStudy (anonymous):

Ohhh

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