(x+35)(x+18)=2(35)(18) Factor X^2+53x+630=2(35)(18) X^2+53x+630=1260 Move 1260 to left to get 0 X^2+53x+630-1260=0 X^2+53x-630=0 Factor (X+10)(x+63)=0 X+10=0 X=10-0 X=10 X+63=0 X=-63-0 X=-63 So X=10,-63
