Factoring help

I

iforgotmypassword

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Joined
Apr 12, 2011
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Hello, my name is Anne and I am stuck on a Factoring Problem.
Problem:
9x sqaured+36x=0


What I did:
9x sqaured+36x=0
9x(x+4)=0
9x=0
x= -4

Thank you so much if you can help,
Anne
 
iforgotmypassword said:
Hello, my name is Anne and I am stuck on a Factoring Problem.
Problem:
9x sqaured+36x=0


What I did:
9x sqaured+36x=0
9x(x+4)=0
9x=0 ? x = 0
x= -4

Thank you so much if you can help,
Anne
Click to expand...

As far as I can interpret, you solved the problem correctly.

However, you never did say what you were asked to do.
 
I NEED HELP WITH FIND solving equation like

what is equivalent to the expression
X(exponent 2)+3x-28
 
shaniquerose said:
X(exponent 2)+3x-28

Use the caret symbol (^) to show exponents, and do not interchange the symbols X and x (use one or the other, not both).
Click to expand...

In the future, use the [NEWTOPIC] button to start your own thread for each new exercise. Please do not post new questions at the end of somebody else's thread.


x^2 + 3x - 28

This polynomial factors to the form (x + ?)(x + ?)

You need to find the two numbers that replace those questions marks.

These two numbers will multiply to make -28 but add to make 3.

Can you find these two numbers?

(HINT #1: One of these numbers is positive and the other is negative because they multiply to make a negative.)

(HINT #2: Use your multiplication table to think about the factors of 28.)

Please show any work, if you would like more help. 8-)

 
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