Question

Write the quadratic equation in general form. What is the value of b2 - 4ac?

Answer 1

it's the discriminant..

Answer 2

what?

Answer 3

what do you mean what value?
ax^2 + bx + c = 0
D = b^2 - 4ac

Answer 4

the general form of the quadratic equation is
\[ax ^{2}+bx+c=0\]

Answer 5

\[b ^{2}-4ac\] is called the Discriminant

it value tells us how many and what kind of roots will the given equation have....

Answer 6

y = (x - 1)2 - 2
y = (x - 1)2 + 2
y = (x + 1)2 - 2
y = (x + 1)2 + 2
theze are the answer choics

Answer 7

its a dicriminant b^2-4ac
wher if
\[b ^{2}-4ac\]=0
therefore it has real and equal roots
\[b ^{2}-4ac\]<0
it has real and distinct roots
\[b ^{2}-4ac\]>0
it has no real roots

Answer 8

what is your original quadratic equation??? u hv not given that.....

Answer 9

1 = 2x2 + 7x

Answer 10

see this equation can be put in the quadratic form as follows:

2x^2 + 7x - 1 = 0
here a = 2, b= 7 and c=-1
so b^2-4ac = (7)^2 - 4(2)(-1) = 49 +8 = 57
so b^2-4ac = 57


Understood????