Question

find the zero of the polynomial and verify the relationship between zero and coefficient i) 8x²–18x–5​

Answer 1

this is simple...

8 is the coefficient of x squared

-18 is the coefficient of x

-5 is the constant

now solve it...

axsquared + bx + c

so the zeroes are b/ a

and -c/a

Answer 2

8x^2-18x-5=0

8x^2-20x+2x-5=0

4x(2x-5)+(2x-5)=0

x=5/2,-1/4

sum of the rootsis -18/8