Question

Cat este x?
a) [tex] x^{2} : 2^{2} = (3^{2})^{2}
b) 144 : x = 3^{2}[/tex]

Answer 1

[tex]a) x^{2} :2^2=(3^2)^2 \\ sau\\ \frac{x^2}{2^2}=3^4\\ x^{2} = 3^4*2^2\\ x^{2} = 81*4\\ x^{2} =324\\ x= \sqrt{324}\\ x= 18\\ b) 144:x=3^2\\ 144:x=9\\ x=144:9\\ x=16[/tex]