Sagot :
Bonjour,
(x+5)²=25 <=> (x+5)=√25ou (x+5)= -√25 <=> (x+5)=5 ou (x+5)=-5 <=> x=0 ou x=-10
Bonjour
(x+5)² = 25
(x+5)² - 25 = 0
(x+5)² -5² = 0
(x+5-5)(x+5+5) = 0
x(x+10) = 0
x = 0 ou x = -10
Bonjour,
(x+5)²=25 <=> (x+5)=√25ou (x+5)= -√25 <=> (x+5)=5 ou (x+5)=-5 <=> x=0 ou x=-10
Bonjour
(x+5)² = 25
(x+5)² - 25 = 0
(x+5)² -5² = 0
(x+5-5)(x+5+5) = 0
x(x+10) = 0
x = 0 ou x = -10