Question

72x^2-98y^2 factorisation​

Answer 1

Answer:

x/y=7/6 and x/y=-7/6

Step-by-step explanation:

$72 {x}^{2} - 98 {y}^{2} = 0 \\ 2(36 {x}^{2} - 49 {y}^{2} ) = 0 \\ 36 {x}^{2} - 49 {y}^{2} = 0 \\ ( {6x)}^{2} - ( {7y)}^{2} = 0 \\ (6x - 7y)(6x + 7y) = 0 \\ 6x - 7y = 0 \\ 6x = 7y \\ \frac{x}{y} = \frac{7}{6 } \\ 6x + 7y = 0 \\ 6x = - 7y \\ \frac{x}{y} = \frac{ - 7}{6}$

Answer 2

Answer:

(6x-7y) (6x+7y)=6x^2-7y^2