KiddWilerr
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Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x2 – 4 into the quadratic formula?

Which shows the correct substitution of the values a b and c from the equation 2 x x2 4 into the quadratic formula class=

Respuesta :

apologiabiology
[tex]x= \frac{-b+/- \sqrt{b^2-4ac} }{2a} [/tex]

first solve for 0=ax^2+bx+c
-2=-x+x^2-4
add 2 to both sides
0=x^2-x-2
a=1
b=-1
c=-2

[tex]x= \frac{-(-1)+/- \sqrt{(-1)^2-4(1)(-2)} }{2(1)} [/tex]

last one is answer


soph1sike1sof

The correct answer is D. on edg

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