Question

X ao quadradro menos 25x = 0

Answer 1

$\mathrm{x^2-25x=0\ \to\ x(x-25)=0}\\ \mathrm{\boxed{\mathrm{x=0}}\ \ \|\ \ x-25=0\ \to\ \boxed{\mathrm{x=25}}}\\\\ \boxed{\boxed{\mathbf{\mathbb{S}=\{x\in\mathbb{R}\ |\ x=0\ ou\ x=25\}}}}$

Answer 2

x² - 25x = 0

x • (x - 25) = 0

x= 0

x - 25 = 0

x= 0 + 25

x= 25

S= ( 0 , 25)