Решите уравнение 1) x²-100 = 0 2) x²-64 = 0 3) 4x²-9 = 0 4) (x-1) ² - 4 = 0 5) x² - 6x =...

Question

Решите уравнение
1) x²-100 = 0
2) x²-64 = 0
3) 4x²-9 = 0
4) (x-1) ² - 4 = 0
5) x² - 6x = 0
6) 25x² - 5x = 0
7) x² + 6 = 0
8) 25x² + 1 = 0

Answer 1

1) x^2=100
x=10
2)x^2=64
x=8
3)4x^2-9=0
4x^2=9
x^2=9/4
x=3/2
4)(x-1)^2-4=0
(x-1)^2=4
x-1=2
x=3
5)x^2-6x=0
x=0 или x-6=0
х=0 или х=6
6)25x^2-5x=0
 5x=0 или 5x-1=0
x=0  или 5x=1
x=0 или x=1/5
7)x^2+6=0
x^2=-6
x=-корень 6
8)25x^2+1=0
25x^2=-1
5x=-корень 1
x=-корень1/5