Question

Помогите пожалуйста прошу срочно, без дискриминат

Answer 1

(x + 1)² = 25

x + 1 = 5

x + 1 = -5

x = 4

x = -6

Ответ: -6; 4.

(45²-25²)/(4.5² - 2.5²) = (45 - 25)(45 + 25) / (4.5 - 2.5)(4.5 + 2.5) = 20*70/2*7 = 100

(x - 1)² = 16

x - 1 = 4

x - 1 = -4

x = 5

x = -3

Ответ: -3; 5.

Answer 2

1) (x+1)^2=25
(x+1)^2=5^2
x+1=5
x=4;
(x+1)^2=(-5)^2
x+1=-5
x=-6

2) (45-25)(45+25)/(4,5-2,5)(4,5+2,5)=
20*70/2*7=1400/14=100

3) (x-1)^2=16
(x-1)=4
x=4+1
x=5;
(x-1)=-4
x=-4+1
x=-3