Question

if a minus b and a + b are the zeros of the polynomial f of x is equal to 2 x cube minus 6 X square + 5 x minus 7 and find the value of a​

Answer 1

here zeros are A-B and A+B

f(x)=2x^3-6x^2+5x-7

sum of zeros= -b/a

here 6/2=3

sum of zeros=3

here sum ofzeros (A-B)+(A+B)=3

2A=3

so A=3/2