Question

find the limits of real value of x so that the expression 5 x square + 6 x minus 8 is non negative

Answer 1

Hey dear!!


Here is yr answer
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=> 5x² + 6x - 8


Use middle splitting method... for the above quad. equation


=> 5x² + 10x - 4x - 8

=> 5x (x+2) -4 (x+2)

=> (x+2) (5x-4)


x = -2. :: x = 4/5


Hope it hlpz....