Question 407981
(1) A woman is 35years old and her son is  25years old how many years ago was their product is their ages is 1740?
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x*(x+10) = 1740
{{{x^2 + 10x - 1740 = 0}}}
*[invoke solve_quadratic_equation 1,10,-1740]
It's in the future, when she's 47.012 and he's 37.012.
She had a son at age 10, I don't think algebra is her biggest problem.
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     (2) A number is subtracted from 20 and from 17. The product of the numbers obtain is 180. Find the original number?
(20-x)*(17-x) = 180
{{{340 - 37x - x^2 = 180}}}
{{{x^2 + 37x - 160 = 0}}}
*[invoke solve_quadratic_equation 1,37,-160]
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