Question 1043132
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As I understand your post, you want to find the value of d from the quadratic equation

{{{32d^2+32d}}} = 850.

Write it in the standard form

{{{32d^2+32d - 850}}} = {{{0}}}.

Apply the quadratic formula.

If you don't know what is the quadratic formula, or if you are not sure, then consult the lessons

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/Introduction-Into-Quadratics.lesson>Introduction into Quadratic Equations</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/proof-of-quadratic-by-completing-the-square.lesson>PROOF of quadratic formula by completing the square</A>

in this site.
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