Объяснение:
1) x^2 = 56 - 20 = 36
x1 = √36 = 6; x2 = -√36 = -6
2) 2y^2 = 50
y^2 = 50/2 = 25
y1 = √25 = 5; y2 = -√25 = -5
3) a^2 = 4,29 + 1 = 5,29
a1 = √5,29 = 2,3; a2 = -√5,29 = -2,3
4) b^2 = 1,84 + 3 = 4,84
b1 = √4,84 = 2,2; b2 = -√4,84 = -2,2
Объяснение:
1) x^2 = 56 - 20 = 36
x1 = √36 = 6; x2 = -√36 = -6
2) 2y^2 = 50
y^2 = 50/2 = 25
y1 = √25 = 5; y2 = -√25 = -5
3) a^2 = 4,29 + 1 = 5,29
a1 = √5,29 = 2,3; a2 = -√5,29 = -2,3
4) b^2 = 1,84 + 3 = 4,84
b1 = √4,84 = 2,2; b2 = -√4,84 = -2,2