SOLUTION:
Algebra
->
Quadratic Equations and Parabolas
->
Quadratic Equations Lessons
->
Quadratic Equation Lesson
-> SOLUTION:
Log On
Quadratics: solvers
Quadratics
Practice!
Practice
Answers archive
Answers
Lessons
Lessons
Word Problems
Word
In Depth
In
Click here to see ALL problems on Quadratic Equations
Question 88605
:
Answer by
malakumar_kos@yahoo.com(315)
(
Show Source
):
You can
put this solution on YOUR website!
y = x^2 + 9x + 18
what is the minimum value
Factorising 18 = 6^3
y = x^2 + 9x + 18
what is the minimum value
Factorising 18 we get 18 = 6*3 = 18 6+3 = 9
y = x^2+6x+3x+18
y = x(x+6)+3(x+6)
y = (x+6)(x+3)
The solution for the eq'n is x = -6 and x = -3