(x+7)(x-7)-(x-3)^2=53

Question

(x+7)(x-7)-(x-3)^2=53

Answer 1

(x+7)(x-7)-(x-3)^2=53

x^2-49-(x^2-6x+9)=53

x^2-49-x^2+6x-9=53

6x=53+49+9

6x=111

x=18.5 .