Answer:
Step-by-step explanation:
Step one
Given the expression
[tex]f(x) = 2x^2- 8x - 10.[/tex]
we can solve for the The discriminant using the expression
[tex]b^2 - 4ac[/tex]
Step two
from the given expression
the second term b=-8
the first term a= 2 and
the constant term c=-10
Step three
substituting all the terms into the expression [tex]b^2 - 4ac[/tex] we have
[tex]b^2 - 4ac = (-8)^2 - (4)(2)(-10) =64- (-80)= 64+80= 144[/tex]
