Question

9 la puterea x+1 -4×3 la puterea 2x =45 va rog ajutor

Answer 1

cred ca 7x :))) nuj sigur

Answer 2

9lax+1-4x3la2x=45
(3la2)lax  x3la2-4x3la2x=45
9lax  x9-4x9lax=45
9lax factor comun
9lax(9-4)=45
9lax  x5=45
impartim cu 5
9lax=9
x=1