find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficient
a) 2x²-11x+5
b)3x²-8x+4
c) 5x² + 8x-4
plz help urgent plz plz
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Answer:
2x^2-11x+5
=2x^2 -10x-x+5
=2x(x-5)-(x-5)
=(x-5)(2x-1)
one zero=a =5 and another zero =b =1/2
a+b=5+1/2=11/2
ab=5×1/2= 5/2
construct polynomial with these values
x^2-(a+b)x+ab
=x^2-11/2x+5/2
Multiply throughout by 2 you get
2x^2-11x+5 verified
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