Can someone Explain how they got the part that is circled from the second deriva
ID: 2837448 • Letter: C
Question
Can someone Explain how they got the part that is circled from the second derivative. I am having problems simplifying and cleaning up the problem to the ending result. When I try to simplifiy I get close to what is circled in red but I get a -4(x^2 - 1) squared instead of -4(x^2 -1)
Can someone Explain how they got the part that is circled from the second derivative. I am having problems simplifying and cleaning up the problem to the ending result. When I try to simplifiy I get close to what is circled in red but I get a -4(x^2 - 1) squared instead of -4(x^2 -1)Explanation / Answer
They have taken (x^2 - 1) common from the numerator and denominator and cancelled it