Question

(x+3)la puterea2=49 va rog

Answer 1

$(x+3)^2=49 \\ x+3= \sqrt{49} \\ x+3=7 \\ x=7-3 \\ x=4 \\ x+3=- \sqrt{49} \\ x+3=-7 \\ x=-7-3 \\ x=-10 \\ x=-10;x=-4$