Why is it that (k+1)^4 became (k+1)^3

Q: 5x3)^2-1 I get as a result 224 but I need to simplify and there’s where I get stuck

A: Given that: (5x3)2-1

Q: Find: (2x + 11)(3x – 7) * O 6x^2 + 19x - 77 O 5x^2 - 47x + 4 O 5x^2 + 47x - 4 O 6x^2 - 19x + 77

A: In this question we need to simplify the given function.

Q: 3(x+3)^2 and the answer is 3(x^2+6x+9) how do you get that answer.

A: Expanding (x+3)^2 :

Q: Multiply using the rule for the square of a binomial. (7x+4)² (7x + 4)² = ¯¯¯ TEM

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Q: (4/5x2+1/2x+8) + (1/7x2+2/7x3+5) Add the 2 polynomials

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Q: Where and how did you get 512x -120 + 8x, then 5x^2 - 50x? Break down 12/x + 8/x-10. I get this…

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Q: What is the GCF of the expressions 115rs^5(2r+s)^3 and 100r^3s^4(2r+s)^7?

A: To find the GCF of the expression: 115rs5(2r+s)3 and 100r3s4(2r+s)7 Simply write the complete…

Q: Without expansion, evaluate (3x-2)*+ 4(3x-2)*(5-3x) + 6(3x-2)(5-3x) + 4(3x-2)(5-3x) + (5-3x)*.

A: We will solve the problem using binomial expansion.

Q: hat is the coefficient of xk in 1+x+x4 divided by (1+x)5

A: This is the problem of combinatorial.

Q: how did you get the (x^2+2x-3) twice? can you show that please?

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Q: 21+(14-12)^2

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Q: Multiply the binomial (9x2-7y2) (x2-4y2)

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Q: Find the term of (a-2b)^13 that has b^3 in it.

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Q: how (n+2)^2+1 became (n+1+2)^2

A: The given sequence To find:-The nth term of sequence

Q: (-4)^2 x (7-9)^2 + (3+4)^2=

A:

Q: how do i simplify (6x+4)(6x+5) ?

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Q: (2k^{3}-3+7k^{2})+(8k^{3}+5k^{2}+6)

A:

Q: how do i add these two polynomials  8x7 +6x+3 and 6x9-2x8

A: Given polynomials are,

Q: Hi, it is (-3)^n not (-2)^n

A: The given power series,∑n=0∞n2-n2nx+1n