High School

If [tex]x = 19[/tex], then find the value of [tex]x^5 - 20x^4 + 20x^3 - 20x^2 + 20x[/tex].

Answer :

Final answer:

-28218181 is the result when you substitute x = 19 into the expression x⁵-20x⁴+20x³-20x²+20x.

Explanation:

The question is asking for the value of the expression x⁵-20x⁴+20x³-20x²+20x when x = 19. To obtain the answer, we just need to substitute the value of x into the expression and calculate accordingly.

So, x⁵-20x⁴+20x³-20x²+20x = 19⁵ - 20*19⁴ + 20*19³ - 20*19² + 20*19 = 2476099 - 68546400 + 43838040 - 1441800 + 380. After calculating each term separately, you can add or subtract the terms according to the sign preceding them. The main answer, calculated using this method, comes out to be -28218181.

This is a crucial application of arithmetic operations, and a basic numerical problem encountered often in high school Mathematics. It is also important to make sure you observe the order of operations (PEMDAS/BODMAS rule) in calculating such expressions. In the conclusion, the main concept to be grasped here is the substitution of a known value into an algebraic expression to solve it.

Learn more about Algebraic here:

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