Processing math: 100%
 
+0  
 
0
611
1
avatar

does       7x3=(32×x+2x3)

 May 15, 2014

Best Answer 

 #1
avatar+130466 
+5

Remember...an equation has to satisfy all values where it is defined...in this case where x > 0. So lets pick any positive number, say, 1, and see if it "works.'

7 /(1)^3 = (3/2 x √(1) + 2 / (1)^3)   ???

7/1 = (3/2 + 2)  ???

7 = 7/2   ???

Nope......doesn't look like it's true !!

(Actually.....your equation only works when x ≈ 1.41)

 May 15, 2014
 #1
avatar+130466 
+5
Best Answer

Remember...an equation has to satisfy all values where it is defined...in this case where x > 0. So lets pick any positive number, say, 1, and see if it "works.'

7 /(1)^3 = (3/2 x √(1) + 2 / (1)^3)   ???

7/1 = (3/2 + 2)  ???

7 = 7/2   ???

Nope......doesn't look like it's true !!

(Actually.....your equation only works when x ≈ 1.41)

CPhill May 15, 2014

2 Online Users

avatar