lets solve your equation step by step: (x+18)^1/2+2=x step 1:Add -2 to both sides: (x+18)^1/2+2-2=x+-2 (x+18^)1/2=x-2 step 2:solve exponent (x+18)^1/2=x-2 ((x+18)^1/2)^2=(x-2)^2 x+18=x^2-4x+4 x+18-(x^2-4x+4)=x^2-4x+4-(x^2-4x+4) (subtract x^2-4x+4 from both sides) -x^2+5x+14=0 (-x-2)(x-7)=0(factor left side of equation) -x-2=0 or x-7=0 (set factors equal to zero) x=-2 or x=7
check answers:(plug them in to make sure they work ) x=-2(doesn't work in original equation) x=7(works in original equation)
