Question

if (4a2-3b2):(2a2+5b2) = 12:19, then a:b =?​

Answer 1

Answer:

a:b  = 3:2

HOPE THIS HELPS!!!

Answer 2

Answer:

(4a2-3b2)/(2a2+5b2) = 12/19

76a² - 57b² = 24a² + 60b²

52a² = 117b²

a²/b² = 117/52

a:b = $\sqrt{117/52}$