Question

Solve the equation using he Quadratic Formula

x^2 - 7x -3=0

Answer 1

list your
a
b
c
values :)

Answer 2

Ok what else I did that ?

Answer 3

well then we plug them in

Answer 4

First tell me what they are

Answer 5

\[ax^2+bx+c\]

Answer 6

Once you have the values you plug them in this formula
\[x=\frac{-b ± \sqrt(b^2 - 4ac) }{ 2a }\]

Answer 7

A: x B:-7 C:-3

Answer 8

\[\rm x=\frac{-b ± \sqrt{(b^2 - 4ac)} }{ 2a }\]
now plug it in

Answer 9

\[\rm x=\frac{-(-7) ± \sqrt{(-7)^2 - 4(1)(-3)} }{ 2(1) }\]

Answer 10

From there all you do is solve

Answer 11

Okay do I multiply or divide

Answer 12

fist solve whats in the square root but do not square root it just do it as an equation

Answer 13

ok let try to solve it

Answer 14

is the answer -1

Answer 15

then I divide by the bottom

Answer 16

no its not

Answer 17

https://www.google.com/search?q=(-7)%5E2-4(1)(-3)&oq=(-7)%5E2-4(1)(-3)&aqs=chrome..69i57j0.2851j0j4&sourceid=chrome&es_sm=0&ie=UTF-8

Answer 18

\[\rm x=\frac{7 ± \sqrt{61} }{ 2 }\]
now to solve it all you do is set up 2 equations
\[\rm x=\frac{7 +\sqrt{61} }{ 2 }\]
\[\rm x=\frac{7 - \sqrt{61} }{ 2 }\]

Answer 19

Then you solve.

Answer 20

do i square root 61?

Answer 21

yes

Answer 22

http://www.math.com/students/calculators/source/quadratic.htm
i suggest using that instead of trying to calculate it by hand

Answer 23

ok thank you

Answer 24

No problem.