SOLUTION: Please help m solve this equation {{{ 12y^2 + 8y - 15 }}}

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help m solve this equation {{{ 12y^2 + 8y - 15 }}}      Log On


   



Question 1107713: Please help m solve this equation +12y%5E2+%2B+8y+-+15+
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
What equation?

Roots of the quadratic expression?
y=%28-8%2B-+sqrt%288%5E2-4%2A12%2A%28-15%29%29%29%2F%282%2A12%29
-
You need to say what you really mean!
Trial and inspect factorization attempts give highlight_green%28%286y-5%29%282y%2B3%29%29.

(tried a few different combinations before found that one which works.)

Answer by ikleyn(52906) About Me  (Show Source):
You can put this solution on YOUR website!
.
On solving quadratic equations using quadratic formula see the lessons
    - Introduction into Quadratic Equations
    - PROOF of quadratic formula by completing the square
in this site.


Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic "Quadratic equations".


Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.