Question

3x^2-7x-5=0
solutions? and x-intercepts?

Answer 1

solution -> solve for x

x-int _> just same

Answer 2

use quadratic formula

Answer 3

You kinda have to use the quadratic formula.
\[-b ±\sqrt{b ^{2} - 4ac}\over2a\]

Answer 4

I know I have to use the quadratic formula........the problem is using the formula

Answer 5

What do you mean?

Answer 6

I am not sure how?

Answer 7

a = 3 b =-7 and c = -5 You will get a complex answer.

Answer 8

a = 3
b = -7
c = -5
Just plug in numbers. The form for a quadratic is ax^2 + bx + c
That's where it comes in.

Answer 9

ok

Answer 10

Do you understand?

Answer 11

Im not sure how to calc x

Answer 12

Your x will equal the complex number you get when you solve the quadratic equation..that is the x you are solving for.... x = quadratic equation.

Answer 13

\[1/6(7-\sqrt{109},1/6(7+\sqrt{109}\]

Answer 14

??

Answer 15

the x-intrecepts how do I write those?

Answer 16

a = 3
b = -7
c = -5
(7 ±√109)/6
You can approximate it if you want, but these are the solutions. Last line.

Answer 17

ordered pair for x-intr
(-1,2)?