Find the following. Assume that variables can represent any real number.
sqrt[(a+8)^2] = a+8 or -a-8
No, when we take the sqrt of a squared term, we get that term, or its negative.
So, sqrt(x²)=x or sqrt(x²)=-x
So for this question we get that:
sqrt((a+8)²)=a+8 or sqrt((a+8)²)=-a-8