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We want to factor the following expression:

x^(3)-25
Which pattern can we use to factor the expression?

U and 
V are either constant integers or single-variable expressions.
Choose 1 answer:
(A) 
(U+V)^(2) or 
(U-V)^(2)
(B) 
(U+V)(U-V)
(c) We can't use any of the patterns.

We want to factor the following expression:\newlinex325 x^{3}-25 \newlineWhich pattern can we use to factor the expression?\newlineU U and V V are either constant integers or single-variable expressions.\newlineChoose 11 answer:\newline(A) (U+V)2 (U+V)^{2} or (UV)2 (U-V)^{2} \newline(B) (U+V)(UV) (U+V)(U-V) \newline(C) We can't use any of the patterns.

Full solution

Q. We want to factor the following expression:\newlinex325 x^{3}-25 \newlineWhich pattern can we use to factor the expression?\newlineU U and V V are either constant integers or single-variable expressions.\newlineChoose 11 answer:\newline(A) (U+V)2 (U+V)^{2} or (UV)2 (U-V)^{2} \newline(B) (U+V)(UV) (U+V)(U-V) \newline(C) We can't use any of the patterns.
  1. Recognize expression type: We need to recognize the type of expression we are dealing with. The expression x325x^3 - 25 is a difference of two cubes because x3x^3 is a cube of xx and 2525 is a cube of 55. The difference of two cubes can be factored using the formula a3b3=(ab)(a2+ab+b2)a^3 - b^3 = (a - b)(a^2 + ab + b^2), where aa and bb are any expressions. In our case, a=xa = x and b=5b = 5.
  2. Apply difference of cubes formula: Now we apply the difference of cubes formula to the expression x325x^3 - 25. We have a=xa = x and b=5b = 5, so the factored form will be (x5)(x2+5x+25)(x - 5)(x^2 + 5x + 25).
  3. Check factored form: We can check our work by expanding the factored form to see if it equals the original expression. (x5)(x2+5x+25)=x3+5x2+25x5x225x125(x - 5)(x^2 + 5x + 25) = x^3 + 5x^2 + 25x - 5x^2 - 25x - 125. Simplifying this, we get x3125x^3 - 125, which is not equal to the original expression x325x^3 - 25. This indicates that we made a mistake in our calculation.

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