Question

Porfavor ayudenme
25x^2-64=0

Answer 1

$25 x^{2} - 64$=0$25 x^{2} - 64 = 0$

Diferencia de cuadrados

$a^{2}- b^{2} = (a+b)(a-b)$

$25 x^{2} -64 = 0$

(5x + 8)(5x - 8) = 0

5x+ 8 = 0        5x - 8 = 0
5x = -8             5x = 8
x = -8/5              x = 8/5

CS =(-8/5; 8/5)