We want to factor the following expression:x3−25Which 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.
Q. We want to factor the following expression:x3−25Which 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.
Recognize expression type: We need to recognize the type of expression we are dealing with. The expression x3−25 is a difference of two cubes because x3 is a cube of x and 25 is a cube of 5. The difference of two cubes can be factored using the formula a3−b3=(a−b)(a2+ab+b2), where a and b are any expressions. In our case, a=x and b=5.
Apply difference of cubes formula: Now we apply the difference of cubes formula to the expression x3−25. We have a=x and b=5, so the factored form will be (x−5)(x2+5x+25).
Check factored form: We can check our work by expanding the factored form to see if it equals the original expression. (x−5)(x2+5x+25)=x3+5x2+25x−5x2−25x−125. Simplifying this, we get x3−125, which is not equal to the original expression x3−25. This indicates that we made a mistake in our calculation.