(n^2-n)+((n-1)^2-(n-1))+....+(1^2-1) =n(n+1)(2n+1)/6 - n(n+1)/2

Q: (3s 4(x-5) 4. (340C)= 215x+-20 3--20 5. (x-23(x-1) (2x-3)(x+7) Bx + 8)=5-8 (x-6)(x+5) 8. 31 3-

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Q: ind witnesses to show that n^3 − 5n^2 − 4n is O(n^3).

A: In this question, order of polynomial can be found with the help of Big-O notation. Big-O Notation…

Q: Are (D+(m*13/12))/2 and ((D+M)/2) +2.5 and [D+ (m+5)]/2 equivalent? If so, show how. If not explain…

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Q: Which of the following is equivalent to 3x²(-2x)e-x² + e-x²16x O -16xe-x²(x² - 1) O 16xe-x²(x² + 1)…

A: Given query is to simplify the expression.

Q: Select two expressions equivalent to 15a² – 5a - 11 (Select all that apply.) (14a² − 9a +1)+(a² + 4a…

A: Given; 15a2-5a-11.

Q: Perform the operations indicated. "G:)-(;3) (a) (2 5 -3) 4 -2 5) 3 2) (b) /-6 -2 -3 3 (2 5 -3 7) (c)…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What mixed number did Ricardo de equation to represent the decompc (4)/(5)+(5)/(5)+…

A: Given fraction is (4/5)+(5/5)+(6/5)+(5/5)+(4/5) Concept: First we will take LCM of denominator…

Q: (x+2)(x+ 1) y = 2x-4 (2x +3)(2x – 4)– 2(x² + 3x + 2) (2x – 4)? O a.

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Q: The simplification of 7 + 2.7n-1+ ...+2.7²+2 7+2 is 7^2.5 O (4-(7^n)-1)/3 O (3.7^(n+1)-1)/2 O…

A: To simplify the expression 7n+2•7n-1+••••+2•72+2•7+2

Q: 1. Can you reduce this expression?  (x2 + 3x)/ (2x - 1) 2. Aren't there math symbols available on…

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Q: 1) 7x - 58x + 16 A) (7x + 8)(x+ 2) B) (7x – 2(x+ 8) c) (7x – 2(x – 8) D) (7x + 2Xx- 8) 2) 2-1-3 A)…

A: According to our guidelines we are supposed to do only first three subparts. kindly repost other…

Q: * (51) + (1- 31) (Ada) (5-si) (-1+si) (multi ply) (multiply)

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Q: I don't understand how (1+2+.....+k)^2=(k(k+1)/2))^2. Please explain. Thank you

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Q: Evaluate the following. (Remember to show your working, and give the exact answer.) (a)…

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Q: Ax-16*x+2) 8.(x+2xx-16) -C1-3NX+4) 2. Select all expressions that are equivalent to x-41-32 D.…

A: As per our guidelines we are supposed to answer only one question. Kindly repost others question as…