# A and b are roots of the equation 2x^2 +5x - 4. Calculate the value of (a - b)^2?

##
a + b = -5/2

ab = -4/2

a + b = -5/2

ab = -4/2

##### 1 Answer

Sep 6, 2017

#### Explanation:

Sum of roots, SoR

Product of roots, PoR

from

plug in

Plug in values of SoR & PoR in above equation.