Answer:
Equation A is true; Equation B is not
Step-by-step explanation:
There is a standard formula for the "difference of cubes" that is:
x^3 - y^3 = (x - y)(x^2 + xy + y^2)
and this perfectly matches equation A.
Equation B has the square of n (n^2) on the left side but not on the right side. Thus this is not an identity.
Answer:
<h2>17½ years </h2>
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The answer is D. (4,2,-3)
See picture for solution:
Subtract 39. That is my answer. I hoped I helped!
