Question

I. Given the following polynomial:





II.
Use the quadratic formula to solve the following:

Answer 1

help me i dont kno mathat all

Answer 2

what's the equation ?

Answer 3

post ur question here :=)

Answer 4

`Given the following polynomial:` ???

Answer 5

look at the attachment

Answer 6

i didn't find the equation can you please post it here ?

Answer 7

how do i do that?

Answer 8

like type in the equation toool ?

Answer 9

take a screenshot ?

Answer 10

 The value of the discriminant is 169.
 There are 2 real roots.
 There are 2 irrational roots.
 The graph intersects the y-axis twice.
 The parabola is directed upward.
 The axis of symmetry is located at
 The vertex is located at:
 The roots are:
 The graph intersects the y axis at (0, -15).
 The graph intersects the x-axis at (-5, 0) and (1.5, 0)






II.
Use the quadratic formula to solve the following:

Answer 11

what's the polynomial ?

Answer 12

there should be an equation Ax^2+Bx+C like this

Answer 13

2xexponet2+7x-15=0

Answer 14

\[\huge\rm 2x^2+7x-15=0\]
quadratic equation ax^2+bx+c quadratic equation
where a=leading coefficient
b=middle term
c-constant term
so what is a
b and c in that equation ?
\[\huge\rm x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a }\]quadratic formula

Answer 15

\(\huge\color{reD}{\rm b^2-4ac}\) `Discriminant`
you can use this to find if the equation is factorable or not
if ` b^2-4ac > 0` then there are 2 real zeros

if ` b^2-4ac = 0` then there is one real root
if ` b^2-4ac < 0` then you will get two complex roots (no -x-intercept)

Answer 16

substitute a b and c value into b^2 -4ac
do you get 169 ?

Answer 17

idk how to domath miss

Answer 18

Ax^2+Bx+C
standard form equation of parabola
where a = leading coefficient
b= middle term
c=constant term

now look at this equation 2x^2+7x-15
what is a b and c ?

Answer 19

2x is a 7x is b

Answer 20

just the coefficient
2 =a
7=b
c = ?

Answer 21

15

Answer 22

-15

Answer 23

alright \[\huge\rm b^2-4ac\] substitute b a and c values then sovle

Answer 24

solve*

Answer 25

how

Answer 26

just replace b with 7
a with 2
c with -15

Answer 27

here is how i would replace b with 7...... \[\rm (7)^2-4ac\] ur turn replace a with 2 and c with -15

Answer 28

49-8-15 that what i got

Answer 29

it's 4 times a times c
it would bbe \[49 -8(-15)\]
now solve

Answer 30

hello ?

Answer 31

idk

Answer 32

that's not an answer
you don't know or you don't want to do it ?
you can use calculator
just put 49-8(-15) into the calculator that's it

Answer 33

56

Answer 34

that's not correct!

Answer 35

49 -8(-15)
first multiply -8 times -15
then add 49

Answer 36

thats what i got both times

Answer 37

-8 times -15 = ?

Answer 38

1065

Answer 39

did you really get that ?

Answer 40

yea

Answer 41

guess what ... try again
make sure you typed -8 times -15 into the calculator

Answer 42

120

Answer 43

yes right 49+120 = ?
that would be discriminant

Answer 44

169

Answer 45

yes right so first
sentence is right ?

` The value of the discriminant is 169`