8. Which polynomial is equivalent to the expression (3x2 - 2x + 5) - (2x2 - 5x + 1)? (1 point)
x2 + 3x + 4
x2 - 7x + 6
x2 - 3x - 6
x2 - 7x + 4

Question

8.   Which polynomial is equivalent to the expression (3x2 - 2x + 5) - (2x2 - 5x + 1)?  (1 point)
x2 + 3x + 4
x2 - 7x + 6
x2 - 3x - 6
x2 - 7x + 4

anonymous · Answer

(3x2 - 2x + 5) - (2x2 - 5x + 1)
do you see the - between the two ( ) - ( )?

anonymous · Answer

it means you have to times each term in the second (  ) by a -1

anonymous · Answer

so c?

anonymous · Answer

mm... not quite
can you show me what you did so I can help? ^_^

anonymous · Answer

what did this turn into?
(3x2 - 2x + 5) - (2x2 - 5x + 1)
becomes...?

anonymous · Answer

I mean, what did it look like when you did the next step?

anonymous · Answer

i cant figure this out

anonymous · Answer

thats ok! i'll teach you ^_^

(3x2 - 2x + 5) - (2x2 - 5x + 1)
becomes

(3x2 - 2x + 5) + (-2x2 + 5x - 1)
becomes

3x2 - 2x + 5 + -2x2 + 5x - 1