Let f(x)=(x+2/3)squared.
find all values for the variable x for which f(x)=0.

Question

Let f(x)=(x+2/3)squared. 
find all values for the variable x for which f(x)=0.

bahrom7893 · Answer

x = -2

bahrom7893 · Answer

because the value of that fraction is equal to zero only when the numerator, or x plus two is equal to zero. x+2 = 0, x= -2 click on Become a fan if I helped. Thanks.

anonymous · Answer

x = -2/3

bahrom7893 · Answer

JJANELLE WRONG!

bahrom7893 · Answer

plug it in and see for yourself.

anonymous · Answer

$$f(x)=(x+2/3)^{2}$$ is the equation to which we are referring, correct? If so, f(-2)=-16/9

bahrom7893 · Answer

okay, let me prove this:
$$f(-2) = ((-2+2)/3)^2 = (0/3)^2=0$$

bahrom7893 · Answer

oh wait, I know what you mean!

bahrom7893 · Answer

$$-2^2 + (2/3)^2$$
Oh, I am sorry, I was thinking about a completely different problem

bahrom7893 · Answer

You are right! But it still depends on the question, he didn't isolate (2/3) by putting it in parenthesis!

bahrom7893 · Answer

Please guys, use parenthesis! And jjanelle congrats on becoming a lifesaver!

anonymous · Answer

Thanks to the order of operations parentheses aren't needed in this problem.
PEMDAS - Parentheses, exponents, multiplication, division, addition, and subtraction

bahrom7893 · Answer

I don't know, I always use em, especially dealing with kids on yahoo answers. I mean having them can't hurt..