Processing math: 100%
 
+0  
 
0
397
1
avatar

If w, x, y, and z are real numbers satisfying

w + x + y = -2

w + x + z = 4

w + y + z = 19

x + y + z = 16

what is wx + yz?

 Oct 17, 2021
 #1
avatar+678 
0

Hello,

 

w = - \frac{11}{3}

x = - \frac{20}{3}

y = \frac{25}{3}

z = \frac{43}{3}

 

(113(203))+(253433)=12959=14389=143.¯8

 

Straight

 Oct 17, 2021

0 Online Users