Posted by Rose on Wednesday, May 2, 2007 at 5:19pm.
Please can someone help me with these?
Thanks in advance!!!
well rose. you nedd to distrubte the first one or find the gcf but there anit one, the second one do the same thing. for further questions just ask.
How can I do the same thing when you are saying there is nothing I can do for the first one?
On the first:
Does that help?
How do you know it is -1 and 3? I know -1 times 3 equals -3, but what does that have to do with 5? Is it because the 3 is half of 6 and 6 plus -1 equals 5?
simplify using identity
OK, to start, split it up, like this:
( )( )
then, split up the 2x^2, like this:
(2x )(x )
The - sign in front of the 3 means you have to subtract to make 5.
Now, what are the factors of 3? 1 and 3, or 3 and 1... it doesn't matter. What you're trying to accomplish is to make 5. So far, the problem could look like this:
(2x 3)(x 1) or this: (2x 1)(x 3)
(we'll figure out the signs in a minute.)Now it's time to FOIL:
_____ _____ _____ ____
first outer inner last
Right now, we'll concentrate on the outer and inner. the first example would look like this:
+2x and the 2nd: +6x
Can you see how the second one is right? +6x-1x=5x
The answer is (2x-1)(x+3)if you have any more questions, well, just ask!
No one has answered this question yet.
Answer this Question
Math(Please check my work.) - (2x-3)(x^2+5x-3)=2x+10x^2-15x+9 *Is this correct...
Intermediate Algebra - Am I going in the right track? 8x -1/x + 5x - 3/2x = 16x^...
Algebra - I'm not quite sure about these problems. I know how to do them, ...
Math - Can someone please check my answers below for accurateness? The ...
math/algebra - cab someone help me? solve by quadratic formula 3x^2 - 5x = -1 I ...
algebra - Can someone please help me with this math problem? Thanks. Let g(x)=x^...
Algebra - Can someone check my algebra answers and help me with the problems I ...
MATH- Algebra 2 - Solve each quadratic in form equation. 1. 4y^4+9=13y^2 2. x-3x...
Math(Please check answers) - Factor completely. If the polynomial cannot be ...
Math - Can someone show me the steps for how to solve: 1.) f(x) = 4x^4 -3x^3 +2x...
For Further Reading