7x2=−77x+294 x2=−11x+42 ⇒x2+11x−42=0 x2+14x−3x−42=0 (x+14)(x−3)=0 ⇒ x = -14 and 3 Since x is positive integer, x = 3. 3y2=54y−51 y2=18y−17 y2−18y+17=0 y2−17y−y+17=0 (y−17)(y−1)=0 y = 17 and 1 Since y is smaller than x, y = 1 2x−5y=2(3)−5(1)=6−5=1