kaileywalsh7 kaileywalsh7

11-03-2019
Mathematics

contestada

Suppose a-b=0 which one of these expressions equals ab
A) 2a
B)2b
C)a/b
D)0
E) b^2

Respuesta :

sqdancefan sqdancefan

11-03-2019

Answer:

E) b^2

Step-by-step explanation:

Solving the first equation for a, we get ...

a - b = 0

a = b . . . . . . add b to both sides

Now, the expression ab can be rewritten as

ab = bb = b^2 . . . . . . substitute b for a

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