Question
Essay; show all work. Find the product: (1/7x^2-2/5)(1/2x-1/2) any help would be appreciated
Answers
Henry
(x^2-2/5)(x/2-1/2).
x^3/14 - x^2/14 -2x/10 + 2/1i.
x^3/14 - x^2/14 - x/5 + 1/5.
LCD = 70.
(5x^3 - 5x^2 - 14x + 14) / 70,
Factor by grouping:
5x^2(x-1) - 14(x-1) / 70,
(x-1)(5x^2-14) / 70.
x^3/14 - x^2/14 -2x/10 + 2/1i.
x^3/14 - x^2/14 - x/5 + 1/5.
LCD = 70.
(5x^3 - 5x^2 - 14x + 14) / 70,
Factor by grouping:
5x^2(x-1) - 14(x-1) / 70,
(x-1)(5x^2-14) / 70.