Question

find the zero of the polynomial and verify the relationship between zeros and coefficient 2√2x^2-9x+5√2​

Answer 1

Answer:

2√2*5√2=20

-4-5=-9

2√2x^2-4x-5x+5√2=0

2√2x(x-√2)-5(x-√2)=0

(2√2x-5)(x-√2)=0

2√2x-5=0. x-√2=0

x=5/2√2. x=√2

α=5/2√2 β=√2

α+β=-b/a αβ=c/a

5/2√2+√2=-(-9/2√2) 5/2√2*√2=5√2/2√2

9/2√2=9/2√2 5/2=5/2