Construct a word problem on quadratic equation (age related problem) so that one answer will be 12.
Solve the problem you have constructed.
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Find the roots of a equation x² - 10x = 200
x² - 10x = 200
=> x² - 10x - 200 = 0
=> x² - 20x + 10x - 200 = 0
=> x(x - 20) + 10(x - 20) = 0
=> (x + 10)(x-20) = 0
=> x = 20 or x = -10
hence one of its answer is 20
@Marzi.......
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