factor the expressions xsquared-4 and 28ksquared+13k-6?

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2007-11-29 10:24:19 · 2 answers · asked by Chuck B 2 in Science & Mathematics ➔ Mathematics

1. X^2 - 4 this is a simple difference of squares
(X+2)(X-2)
2. 28K^2+13k-5
28K^2 + 20k - 7k - 5
4k(7k+5) - 1(7k+5)
(4k-1)(7k+5)

2007-11-29 10:29:25 · answer #1 · answered by whizkid66 3 · 0⤊ 0⤋

Question 1
xÂ² - 4 = (x - 2) (x + 2)

Question 2
28kÂ² + 13k - 6 = (7k - 2)(4k + 3)

2007-12-03 17:59:04 · answer #2 · answered by Como 7 · 0⤊ 0⤋