Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x2 + 1 into the quadratic formula?
Quadratic formula:
-b₃/0² - 400
20
O x=-(-2)/(-2)2 - 4(3)(0)
2(3)
o
*
11
-(-2):7(-2)2 - 4(3)(2)
2(3)
O x=-(-2):7-2)2 - 43)(1)
23)
O
X
11
-3132-4(-2)(0)
2(-2)

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

step-by-step :

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7