Question

Show using the value x=2 that

5x³ are not equivalent.
20x^6/4x²
and 5x^3 are not equivalent

Answer 1

5x³ = 40

20x^6/4x² = 80

100 is not equal to 80

Explanation:

5x³ = 5*2^3

= 40

20x^6/4x² = 20*2^6/4*2^2

= 20*64/16

= 80