Hey i need help on this if anyone is wanting to help
When the expression -2x^2+5x-3-(-7-9x+5x^2) is simplified, the coefficient on the x-term is:
F. 5
G. 9
H. 11
J. 14
Plz help i have been trying to work it out but i feel like i'm doing something wrong so plz help?

Question

Hey i need help on this if anyone is wanting to help
When the expression -2x^2+5x-3-(-7-9x+5x^2) is simplified, the coefficient on the x-term is:
F. 5
G. 9
H. 11
J. 14
Plz help i have been trying to work it out but i feel like i'm doing something wrong so plz help?

anonymous · Answer

can you tell me your approach ?

marcelie · Answer

you can distribute the negative

whpalmer4 · Answer

$$-2x^2+5x-3-(-7-9x+5x^2)$$that $-$ in front of the ( ) expression is the same as seeing $$-2x^2+5x-3-1(-7-9x+5x^2)$$
If we just concentrate on that, what is $$-1(-7-9x+5x^2)$$after you apply the distributive property?

anonymous · Answer

wait i put that wrong my bad i had to re-read lol

whpalmer4 · Answer

For what it is worth, I find this particular "pattern" to be very troublesome for many students — very easy to forget to change the signs of each of the terms inside the parentheses!