or
or
x² + 5x - 6 = 0
or, x² + 6x - x - 6 = 0
or, x(x + 6) - 1(x + 6) = 0
or, (x + 6)(x - 1) = 0
therefore, x + 6 = 0
or,x = - 6
x - 1 = 0
or , x = 1 as,production quantity can not be negativeand the number of units produced in thousands. so, production is = 1000 unit
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