Решите уравнения 1) 36-4x^2=0 2)2y^2-7x+6=0

Question

Решите уравнения 1) 36-4x^2=0 2)2y^2-7x+6=0

Answer 1

1) 36 - 4x^2 = 0
-4x^2 = -36  | : (-4)
x^2 = 9 
x = 3
x = -3

2) 2x^2 - 7x +6 = 0
D = 49 - 48 = 1
x = 7 - 1/4 = 1.5
x = 8/4 = 2