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Simplify (7g2 – 11g + 9) + (13g2 – 21g – 3) 20g2 – 10g + 6 20g2 – 32g + 6 20g2 – 10g + 12 20g2 – 32g + 12
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Hint: Add like terms together
Hero's right. Do that and you should get the correct answer.
is it 20g2 - 10g + 6?
close. You made a mistake however. Can you try to find it?
Try adding it again a second time.
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Yeh, it's not -10g try again.
Oh! its 20g2 -32g + 6
Yes.
Thanks for blurting out the error @JayDS You should give the student a chance to find his/her own mistake.
yeh sorry
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