samuel16 samuel16

12-10-2014
Mathematics

contestada

a^2=-42+13a

solve by factoring ?

Respuesta :

konrad509 konrad509

12-10-2014

[tex]a^2=-42+13a\\ a^2-13a+42=0\\ a^2-6a-7a+42=0\\ a(a-6)-7(a-6)=0\\ (a-7)(a-6)=0\\ a=7 \vee a=6[/tex]

Answer Link

Otras preguntas

At Jaxlyn’s Garage, 200 cars were inspected and worked on. There were 92 cars that needed new brakes, 136 cars that needed a new alternator, and 24 cars that ne

can anyone help me with this one?

Veronica needs to hire carpenters and masons to renovate her house. She needs 9 laborers to finish the work, and has saved $2150 to pay for the laborers. Carpen

What does the K mean in reference to compositions by Mozart? Please explain where this "K" comes from and why it is important when discussing pieces written by

How to Improve our decline in student enrollment

whats the highest number you have ever counted to?

The progressive movement grew out of the_______movement of the late 1800s

coach Jernigan ordered three pizzas to feed 5 of the members on the cross country team. each member received the same amount of pizza. what fraction of the pizz

What is the conflict and resolution of the lottery by Shirley Jackson

The question is in attached picture ⤴Help me...