Question

verify that 1,-2 and 1\2 are zeroes of 2x^3 + x2 + 5x + 2
Also
verify the relationship between the zeroes
and
the Coefficients?​

Answer 1

Answer:

I solved it..incase any doubts .. Comment'on it ...or else if any method if you know please share .. or if it is wrong please correct it ....

Thank you...

Answer 2

Answer:

p(x) = 2x³+x²+5x+2

p(1) = 2(1)³+(1)²+5(1)+2

= 2+1+5+2

= 10

p(-2) = 2(-2)³+(-2)²+5(-2)+2

= -16+4-10+2

= -20

p(1/2) = 2(1/2)³+(1/2)²+5(1/2)+2

= 1/4+1/4+5/2+2

= 5

Step-by-step explanation:

relation between zeroes are

I) 1+(-2)+1/2= -1/2= -b/a

ii) 1×-2+(-2)×1/2+1×1/2

-2-1+1/2

5/2 = c/a

hope it helped you