Posted by kiearra on Sunday, December 28, 2008 at 1:50pm.
factor the expression
2x^2+x15

11th grade  Reiny, Sunday, December 28, 2008 at 1:56pm
This one also factors.
I gave you the previous one, why don't you try this, the factors are quite simple.
Let me know what you got.

11th grade  kiearra, Sunday, December 28, 2008 at 2:07pm
Reiny i got
(x+5)(x3)
x=5 or x=3

11th grade  bobpursley, Sunday, December 28, 2008 at 2:30pm
Not quite. You have to get +2x^2
(2x5)(x+3) ought to do it.

11th grade  Reiny, Sunday, December 28, 2008 at 2:30pm
not quite,
did you notice that the first term was 2x^2, so one of the factors must have started with 2x
so it had to be (2x...)(x....)
YOu should have expanded your answer to see if you get the original question back.
I got (2x5(x+3)= 0
then
x = 5/2 or x = 3
Answer This Question
Related Questions
 11th grade  The students of litchfield High school are in grades 9,10,11,12. Of...
 11th grade  I need help on how to factor a polynomial by grouping
 math  Are trigonometric functions taught in 11th grade, if so ,is it wrong that...
 11th grade  Factor f(x) = x^4 + x^3 – 8x^2 + 6x + 36 completely. Show all steps...
 11th grade  Find the lowest common denominator of the rational expression: 1/m...
 6th grade Math  I need help on the problem below. The instructions say to "...
 Math  I have this worksheet, it has a bunch of different kinds of questions, ...
 11th grade Algebra 2/ Trig  The expression log 10^(x+2) log 10^x is equivalent...
 11th grade math  Simplify each expression. Your answer should still be in ...
 11th grade  write an expression that represents the width of a rectangle with ...
More Related Questions