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give me possibilities on how to make -9

 Jun 24, 2014

Best Answer 

 #2
avatar+3453 
+8

Ok, I'm going to be that one person who gives you a completely impractical possibility for how to make -9.

Here it goes.

(3*7*9*4/6)*(9÷2÷3÷4÷5)-(18.45) = -9

 Jun 24, 2014
 #1
avatar+576 
+5

1-10

3(-3)

27/(-3)

-100+91

the square root of 81 (kinda sorta)

 Jun 24, 2014
 #2
avatar+3453 
+8
Best Answer

Ok, I'm going to be that one person who gives you a completely impractical possibility for how to make -9.

Here it goes.

(3*7*9*4/6)*(9÷2÷3÷4÷5)-(18.45) = -9

NinjaDevo Jun 24, 2014
 #3
avatar+118587 
+5

[(27)^(2/3)*250/(50*5)+290-14.5*20]*(63/(3^2*-7))

 Jun 25, 2014
 #4
avatar+26364 
+6

$$(-2-\sqrt{5}i)(2-\sqrt{5}i)=-9$$

.
 Jun 25, 2014
 #5
avatar+118587 
+5

Lots of great answers here

On Heureks' vein how about

$$-9=-(13-4)=-(\sqrt{13}-2)(\sqrt{13}+2)=(2-\sqrt{13})(\sqrt{13}+2)$$

 Jun 26, 2014

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