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how to solve this (2x+3)(3x-7)=0

 Aug 28, 2015

Best Answer 

 #1
avatar
+8

how to solve this (2x+3)(3x-7)=0

Multiply 2x *(3x - 7)=6x^2 -14x...........(1)

Do the same for 3* (3x -7)=9x -21........(2)

so you have: 6x^2 -14x +9x - 21..........(3)

So, 6x^2 -5x -21=0, so now you to factor this equation, which works out to be:

(2x + 3) * (3x - 7)=0

So x=-3/2 and  x=7/3

And there you have it. Good luck!.

 Aug 29, 2015
 #1
avatar
+8
Best Answer

how to solve this (2x+3)(3x-7)=0

Multiply 2x *(3x - 7)=6x^2 -14x...........(1)

Do the same for 3* (3x -7)=9x -21........(2)

so you have: 6x^2 -14x +9x - 21..........(3)

So, 6x^2 -5x -21=0, so now you to factor this equation, which works out to be:

(2x + 3) * (3x - 7)=0

So x=-3/2 and  x=7/3

And there you have it. Good luck!.

Guest Aug 29, 2015
 #2
avatar+6 
0

how to graph the answer?

 Aug 29, 2015
 #3
avatar+118608 
+5

This is not a grraphing question but you can just put the two coloured in dots on a number line.

 

I assume you gave that thumbs up which is really good but it is nice to say thank you to you answerers as well.  

Especially if you write a new post like you did.  

 Aug 29, 2015

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