Question

a/b=b/c
and a, b, c >0, then show that,
(ab+bc+ ac)2 = ac(b+a+c)2​

Answer 1

Answer:

Problem 1 Two of the following systems of equations have solution (1;3). Find them out by checking.

a) \displaystyle \begin{array}{|l} x + y = 5 \\ 2x - y = 7; \end{array}

x+y=5

2x−y=7;