Question

find the discriminant
2x^2-9x+7=0

Answer 1

ax^ + bx + c compare with ur equation
2x^2 - 9x + 7
so
a=2,b=-9 and c = 7
plug these into
b^2 - 4ac
and you have it

Answer 2

\[b^2-4ac\]
you determine what a, b, c are by comparing your equation to
\[ax^2+bx+c=0\]

Answer 3

-137?

Answer 4

no
b=-9
a=2
c=7

so we have
\[(-9)^2-4(2)(7)\]

Answer 5

Now I came up with 25

Answer 6

right (-9)^2=81

Answer 7

o the discriminant is 25

Answer 8

81-8(7)=81-56=25

Answer 9

Ok thanks a bunch!! I really appreciate it