How to solve. Y=-4(x-2)squared+4
What do you mean, "solve"?y = -4(x-2)² + 4 the line is a parabol with a maximum (2;4)it's roots are -4(x-2)² + 4 = 0 => (x-2)² = 1 => x-2 = 1 => x = 3 => x-2 = -1 => x = 1 symetrical axe: x = 2is that all you need?