#### marshall1432

##### Banned

- Joined
- Jan 10, 2007

- Messages
- 80

10x'2squared' - 13x=3

WORK DONE :

10x'squared' - 13x =3

(10x-9)(x-4)=3

10x-9=3 = 10x=12 ; x-4=3 = x=7

- Thread starter marshall1432
- Start date

- Joined
- Jan 10, 2007

- Messages
- 80

10x'2squared' - 13x=3

WORK DONE :

10x'squared' - 13x =3

(10x-9)(x-4)=3

10x-9=3 = 10x=12 ; x-4=3 = x=7

- Joined
- Feb 4, 2004

- Messages
- 15,945

Apparently your classroom lecture and your textbook omitted amarshall1432 said:10x'squared' - 13x =3

(10x-9)(x-4)=3

To replace that missing information, please review the property in at least one

Also, it appears that your class didn't cover factoring, so please study some lessons on

Once you have the necessary background material, please attempt the exercise again. If you get stuck, or are unsure of your solution, please reply showing all of your steps and reasoning. Thank you!

Eliz.

- Joined
- Jun 18, 2007

- Messages
- 18,184

marshall1432 said:Solve by factoring and applying the zero product property.

10x'2squared' - 13x=3

WORK DONE :

10x'squared' - 13x =3

(10x-9)(x-4)=3 <-- How did you get here from above

If you multiply out (10x - 9)(x - 4),

do you get 10x^2 - 13x?

I get

10x^2 - 49x + 36 totally different from 10x^2 - 13x

10x-9=3 = 10x=12 ; x-4=3 = x=7

- Joined
- Jan 10, 2007

- Messages
- 80

- Joined
- Jun 18, 2007

- Messages
- 18,184

Go to the sites suggested by stapel - you'll find many problems worked out step-by-step.marshall1432 said: