Question

factoriza a) x^2 -1 b) x^2 -y^2 c) y^2 -25 d) x^2 - y^2 e) y^2 -1/4 f) x^2 -1/9 ​

Answer 1

Respuesta:

$a) {x}^{2} - 1 = (x + 1)(x - 1) \\ b) {x}^{2} - {y}^{2} = (x + y)(x - y) \\ c) {y}^{2} - 25 = (y + 5)(y - 5) \\ d) {x}^{2} - {y}^{2} = (x + y)(x - y) \\ e) {y}^{2} - \frac{1}{4} = (y + \frac{1}{2}) (y - \frac{1}{2})\\ f) {x}^{2} - \frac{1}{9} = (y + \frac{1}{3}) (y - \frac{1}{3})$