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avatar+81 

1

 

i think it’s -100, right?

Web2.0calc.com/img/upload/399e3e54f5a16c30f1ab5eea/cffa5227-0bd1-4397-bc66-442a250b4617.jpg

 Oct 31, 2018
 #1
avatar+18846 
+2

They have to mutlipy together to -10 and add to to t

5   -2      t=3

10   -1        9

-5     2       -3

-10   1      -9

 Oct 31, 2018
 #2
avatar+324 
+1

This ^

 

 

\(\)

.
 Oct 31, 2018
edited by Dimitristhym  Oct 31, 2018
 #3
avatar+103674 
+2

(x-2)(x+5)   t=3

(x+2)(x-5)     t= -3

(x-1)(x+10)   t=9

(x+1)(x-10)  t=-9

 

3*-3*9*-9=  9^3 = 729

 Oct 31, 2018
 #4
avatar+81 
+1

Oh oops. I did the same thing but I forgot to find what t is... Thanks!

 Oct 31, 2018

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