Question

x^2+10=7x Решите уравнения

Answer 1

X^2+10=7x
X^2-7x+10=0
X1=5
X2=2
В:5,2

Answer 2

Д = 49-40=9 Д>0

Следовательно:

Х1 = (7+3)/20 = 1/2= 0.5

Х2=(7-3)/20=1/5=0.2

Answer 3

Х1 = (7+3)/2=5, x2=(7-3)/2=4/2=2