Question

HELP PLEASE

Use the quadratic formula to solve the equation.
x^2-7x-6=0

Answer 1

You know the formula and what to plug in?

Answer 2

ax2 + bx + c = 0 is the formula ?

Answer 3

\[\frac{ -b \pm \sqrt{b^{2} - 4ac} }{ 2a }\]

Answer 4

psymon's right

Answer 5

a would be 1, b is -7 then c is -6

Answer 6

Okay thats the formula, how would I solve it ?

Answer 7

substitute it in the formula..

Answer 8

Can you show me how ?

Answer 9

\[\frac{ 7\pm \sqrt{(-7)^2 - 4(1)(-6)} }{ 2(1) }\]

Answer 10

there would be 2 answers..

Answer 11

\[7+\frac{\sqrt{73} }{ 2 }\]

Answer 12

and \[7- \frac{ \sqrt{73}}{ 2 }\]

Answer 13

thats it..

Answer 14

omg, thank you so much silver that helped me alot!

Answer 15

youre welcome :)