Question

cat este a , daca a·32a =240 ????????

Answer 1

$a*32a=240\\32a^{2}=240\\16*2a^{2}=240\\2a^{2}=\frac{240}{16}\\2a^{2}=15\\a^{2}=\frac{15}{2}\\ a^{2}=7,5\\a=±\sqrt{7,5}\\Sfarsit!$