Question

ОЧЕНЬ СРОЧНО РЕШИТЕ УРАВНЕНИЕ x²-16x+63=0

Answer 1

x^2 - 16x+63=0
D = (-16)^2 - 4* 63 = 256 - 252 = 4
√4=2
x1 = (16-2)/2 = 14/2 = 7
x2 = (16+2)/2 = 18/2 = 9 

Answer 2

x^2-16x+63=0
D=256-4(63)=256-252=4=2^2
x=16+4/2=10
x2=16-4/2=6