0 votes 0 votes Q. 3) For some real numbers $a$ and $b$, the system of equations $x+y=4$ and $(a+5) x+\left(b^{2}-15\right) y=8 b$ has infinitely many solutions for $x$ and $y$. Then, the maximum possible value of $a b$ is 15 55 33 25 Others cat2023-set3 + – admin asked Mar 31 admin 4.5k points 77 views answer comment Share See all 0 reply Please log in or register to add a comment.