Question 280119
Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.
2x2 + 8x = - 1
{{{2x^2 + 8x + 1 = 0}}}
*[invoke solve_quadratic_equation 2,8,1]
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2.Solve for the specified variable. S = a/1 - r
Which variable?