All equations of the kind ax^2+bx+c=0 can be fixed using the quadratic formula: \frac-b±\sqrtb^2-4ac2a. The quadratic formula provides two solutions, one once ± is addition and one once it is subtraction.


You are watching: H=vt-16t^2 solve for v

This equation is in conventional form: ax^2+bx+c=0. Substitute -16 for a, v for b, and -h because that c in the quadratic formula, \frac-b±\sqrtb^2-4ac2a.
currently solve the equation t=\frac-v±\sqrtv^2-64h-32 as soon as ± is plus. Add -v to \sqrtv^2-64h.
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