Question

resolva a equação (y - 3)² = 36​

Answer 1

Explicação passo-a-passo:

$(y-3)^2=36\\ \\ \sqrt{(y-3)^2} =\pm\sqrt{36} \\ \\ y-3=\pm6\\ \\ y-3=+6~~~~~~~~~~~~~y-3=-6\\ y=6+3~~~~~~~~~~~~~~~~~y=-6+3\\ \\ \fbox{ y=9 }~~~~~~~~~~~~~~~~~~~~~~~\fbox{ y=-3 }$