Sagot :
Answer:
7,8
Step-by-step explanation:
Let x be the first number,
x^2 - 17 = 4(x+1)
x^2 -17 = 4x +4
x^2 - 4x - 21 = 0
(x+3)(x-7)=0
x_1 = -3
x_2 = 7
7,8
Answer:
7,8
Step-by-step explanation:
Let x be the first number,
x^2 - 17 = 4(x+1)
x^2 -17 = 4x +4
x^2 - 4x - 21 = 0
(x+3)(x-7)=0
x_1 = -3
x_2 = 7
7,8