Question

3ас²/а²-с²×а+с/ас при а=-1,4 с=-5,6

Answer 1

$frac{3ac^{2}}{a^{2}-c^{2}}* frac{a-c}{ac}= frac{3c*(a-c)}{(a-c)(a+c)}=frac{3c}{a+c}= frac{3*(-5,6)}{-1,4-5,6}=2.4$