Question

Math question help me!!!

Answer 1

(x^2-3x+1)- (x^2+2x+7)

Answer = -5x-6

How i don't understand this ?

Answer 2

distribute the - sign through the (x^2+2x+7) and the x^2's will cancel. then go from there

Answer 3

Do you understand now? @carlenstar281

Answer 4

yes sorta why do I have to distribute the minus sign

Answer 5

Because the opposite of a sum is the sum of the opposites.

Answer 6

$$-(a+b)=(-a)+(-b)$$

Answer 7

oh I got it now thanks :)

Answer 8

And now you can use $$a+b=b+a$$ to move the terms around.

Answer 9

think of an imaginary -1 right there where the - sign it.
\[(x^2-3x+1) - (x^2+2x+7)\]
\[(x^2-3x+1) + (-x^2-2x-7)\]

Answer 10

\[x^2+-x^2=0\]
they are like terms kinda like 1+-1=0

Answer 11

or you dont have to distribute it out either way they will cancel

Answer 12

@camoJAX Please use parentheses :)

Answer 13

hahaha gotcha

Answer 14

Thanks

Answer 15

@carlenstar281 Do you want a more detailed explanation?