find the sum and the product of the following equations?find the sum and the product of the following equations:a.) 2x^2-8x+5=0b.)3x^2-9x=0c.)-.5...

Hope it is the sum product of the
roots:

We know that if ax^2+bx +c = 0 , and the roots x1 and x2,
then

the sum of roots is x1+x2 = -b/a and  the product of the roots
is x1x2 = c/a. We apply this to the given equations:

a.)
2x^2-8x+5=0'

Here identify a= 2, b = -8 and c =
5.

Sum x1+x1 = - (-8/2) = 4 and product of roots x1x2 = 5/2 =
2.5.

b.)3x^2-9x=0.

Here a =
3, b= -9.  c = 0 ( c is absent.)

So sum of the roots x1+x2  =
-(-9/3) = 3

Product of the roots x1x2 = 0/3 =
0.

c.)-.5 (in fraction
form)x^2-3x+2=0

 a = -0.5 . b = -3 and c =
-2.

Therefore sum of the roots = x1+x2 = -(-3/-0.5) =
-6/

Product of the roots = x1x2 = -2/-0.5 =
4.