6. Find a solution = x(t) of the equation z' + 2x = t2 + 4t...
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6. Find a solution = x(t) of the equation z' + 2x = t²2 + 4t + 7 in the form of a quadratic function of t, that is, of the form r(t) = at² + bt + c, where a, b, and c are to be determined. 6. Find a solution = x(t) of the equation z' + 2x = t²2 + 4t + 7 in the form of a quadratic function of t, that is, of the form r(t) = at² + bt + c, where a, b, and c are to be determined.
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