Respuesta :

21qcg01

Answer:

E

Step-by-step explanation:

Switch sides:

b^2-4ac=d

Subtract b^2 from both sides:

b^2-   4ac-b^2=d   -b^2

Simplify:

-4ac=d-b^2

divide both sides by -4:

-4ac/-4c=d/-4c-b^2/-4c

Simplify:

d-b^2/4c

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