Question

Is the following equation always true, sometimes true, or never true?
1) x + x = 2x
2) x times x = 2x
3) x^2 = 9 (sometimes?)

Answer 1

x+x=2x

Answer 2

x times x = x sqaured

Answer 3

*squared

Answer 4

Never true!

Answer 5

1 and 2 are always true but 3 is sometimes

Answer 6

IT DEPENDS UPON THE CONDITION WHEREVER IT IS GIVEN OR NEEDED.
BTW THE FIRST ONE IS ALWAYS CORRECT AS I REMMEMBER.

Answer 7

1) \(x + x = 2x\) always
2) \(x \times x = 2x\) sometimes ... when \(x=2\)
3) \(x^2 = 9\) sometimes ... when \(x=3\), or \(x=-3\)

Answer 8

@PaxPolaris IS RIGHT.