Question

find the zero's of the quadratic polynomials and verify the relationship between the zeros and coefficients.
i) 4U2-8u. ii)t2-15

Answer 1

do same as ...


the second one willl form like


$(x + \sqrt{15}) (x - \sqrt{15}) \\ \\ x = - \sqrt{15} \: \: \: x = \sqrt{15}$

Answer 2

4u(u-2)=0
u=0,2
0+2=2=-8/4=-b/a
0*2=0=c/a. C=0

t^2=15
t= +root 15
-root 15
Sum =0 =-b/a
Product= -15=c/a