find the zeros of the quadratic polynomial 5x²-4-8x and find relationship between the zeros
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hey mate
here is your solution...
5x²-4-8x
=>5x²-8x-4=0
=>5x²-10x+2x-4=0
=>5x(x-2)+2(x-2)=0
=>(5x+2)(x-2)=0
=>x=-2/5 or 2
thus,sum of the roots=2+(-2/5)
=8/5
=-b/a
=-(-8)/5. [verified]
also
product of the roots=-2/5*2
=-4/5
=c/a
=-4/5. [verified]
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