Question

simplificati prin x+5 expresia E(x)=x^2+10x+25/4x^2-100
Va rog...!

Answer 1

$E(x)=\dfrac{x^2+10x+25}{4x^2-100}=\dfrac{(x+5)^2}{4(x^2-25)}=\dfrac{(x+5)^2}{4(x-5)(x+5)}\\\text{Dupa simplificare rezulta:}\\\boxed{E(x)=\dfrac{x+5}{4(x-5)}}$