Which of the equations are true identities? A. n^(3)+3n^(2)+2n=n(n+1)(n+2) B. (a+3)^(2)-9=a^(2)+6a Choose 1 answer: (A) Only A (B) Only B (C) Both A and B (D) Neither A nor B

Expand Equation A: Let's expand the right side of equation A and see if it matches the left side. n(n+1)(n+2) = n(n^2 + 3n + 2) = n^3 + 3n^2 + 2nCheck Equation B: Now let's check equation B by expanding the left side. (a+3)^2 - 9 = a^2 + 6a + 9 - 9 = a^2 + 6aVerify Identities: Both equations A and B seem to be true identities after expanding and simplifying.

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Which of the equations are true identities?
A.
n^(3)+3n^(2)+2n=n(n+1)(n+2)
B.
(a+3)^(2)-9=a^(2)+6a
Choose 1 answer:
(A) Only A
(B) Only B
(C) Both
A and
B
(D) Neither A nor B

Which of the equations are true identities? $\newline$ A. $n^{3}+3 n^{2}+2 n=n(n+1)(n+2)$ $\newline$ B. $(a+3)^{2}-9=a^{2}+6 a$ $\newline$ Choose $1$ answer: $\newline$ (A) Only A $\newline$ (B) Only B $\newline$ (C) Both $\mathrm{A}$ and $\mathrm{B}$ $\newline$ (D) Neither A nor B

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Calculus

Find derivatives of using multiple formulae

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Q. Which of the equations are true identities?

\newline

n^{3}+3 n^{2}+2 n=n(n+1)(n+2)

\newline

(a+3)^{2}-9=a^{2}+6 a

\newline

Choose

1

answer:

\newline

(A) Only A

\newline

(B) Only B

\newline

\mathrm{A}

and

\mathrm{B}

\newline

(D) Neither A nor B

Expand Equation A: Let's expand the right side of equation A and see if it matches the left side. $\newline$ $n(n+1)(n+2) = n(n^2 + 3n + 2) = n^3 + 3n^2 + 2n$
Check Equation B: Now let's check equation B by expanding the left side. $\newline$ $(a+3)^2 - 9 = a^2 + 6a + 9 - 9 = a^2 + 6a$
Verify Identities: Both equations $A$ and $B$ seem to be true identities after expanding and simplifying.