Question 183494
Find the solutions to: x^2 + 8x=-16 
x^2 + 8x + 16 = 0
(x+4)*x+4) = 0
x = -4 a single solution, it's tangent to the x-axis.
*[invoke solve_quadratic_equation 1,8,16]
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Find the solutions to: x^2-16x= -64 
*[invoke solve_quadratic_equation 1,-16,64]
Similar
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Find the solutions to : x^2+8x+15=0 The sum of the solutions is:
(x+3)*(x+5) = 0
x = -3, x = -5
*[invoke solve_quadratic_equation 1,8,15]