the product of a number and the one obtained by decreasing it by 7 is -12 the value of the number can be
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the product of a number and the one obtained by decreasing it by 7 is -12 the value of the number can be
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let the number be x
given that,
x(x-7)= -12
x^2 - 7x +12=0
here, a=1 b=-7 c=12
x= [-b+-√(b^2-4ac)]/2a
= [7+-√ (49-36)]/2
= (7+-√13)/2
the numbers are (7+√13)/2 and (7-√13)/2.