Question:
Factor
(8 - x)(8 - x)
(8 + x) (8 - x)
(X + 8)(x-8)
Answer:
Option B: is the factor
Explanation:
Given that the expression is
We need to find the factor of the given expression.
Let us rewrite the expression as
Since the expression is of the form , let us use the identity
where a = 8 and b = x
Substituting the values in the identity, then the expression can be written as
Thus, the factor of the expression is
Hence, Option B is the correct answer.
=====================================================
Explanation:
We simply take half of the exponent 10 to get 5. This applies to square roots only.
So the rule is
A more general rule is
If n = 2, then we're dealing with square roots like with this problem. In this case, a = x and b = 10.
