## GeorgeLin 2 years ago 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?)

1. ineedhelponmyhw

x+x=2x

2. ineedhelponmyhw

x times x = x sqaured

3. ineedhelponmyhw

*squared

4. bgeorge

Never true!

5. sarah43

1 and 2 are always true but 3 is sometimes

6. shruti

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

7. PaxPolaris

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

8. shruti

@PaxPolaris IS RIGHT.