If n ≠ 0, which quadratic equation is written in standard form a.) x+x^2=n b) -x^2-x-n=0 c) x+x^2+n=0 d) x^2-x=n. be sure to expain why you choose this answer

B. -x^2 - x - n = 0.

Step-by-step explanation:

In standard form the terms on the left side are in descending degree order, and the right side equals zero.

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8