Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Let the 2 roots of the quadratic equation 9x^2_7x06=0 be r1 and r2. Evaluate the following:
1. (1/r1)+(1/r2)
2. ((1/r1)+(1/r2)^2
 one year ago
 one year ago
Let the 2 roots of the quadratic equation 9x^2_7x06=0 be r1 and r2. Evaluate the following: 1. (1/r1)+(1/r2) 2. ((1/r1)+(1/r2)^2
 one year ago
 one year ago

This Question is Closed

allankBest ResponseYou've already chosen the best response.0
Kindly rewrite the equation in a more readable form.
 one year ago

allankBest ResponseYou've already chosen the best response.0
Thanks @Grazes but I was talking about the original. 9x^2_7x06=0
 one year ago

GrazesBest ResponseYou've already chosen the best response.0
ohhhh. my bad. dw:1343164807154:dw
 one year ago

allankBest ResponseYou've already chosen the best response.0
No problem. Most of the work here involves factoring the quadratic equation. Can you do that?
 one year ago

ganeshie8Best ResponseYou've already chosen the best response.0
hint  find sum of roots & product of roots
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
sum of roots = b/a product of roots = c/a a,b and c refer to the equation ax^2 + bx + c = 0
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
so r1 + r2 =  7/9 and r1r2 = 6/9
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
now 1/r1 + 1/r2 = r1 + r2 / r1r2 plug in the values 7/9 and 6/9 into the above and you have answer to 1.
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
no 2 is the square of this result
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.