Gjeni vlerën e shprehjeve për \( x=5 \) : a \( 3 x+7 \) b \( 2+x^{2} \) c \( 4 x^{2} \) d \( x-12 \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) e \( 6-7 x \) f \( \frac{x+1}{12} \) g \( (x-3)^{3} \) h \( \frac{4 x-9}{4-x} \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) 2 Gjeni vlerën e shprehjeve për \( x=4 \) dhe \( y=-3 \) : a \( 4 x+2 y \) b \( 3 x-4 y \) c \( x^{2}+y^{2} \) d \( 5 x y \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) e \( 2 x y^{2} \) f \( (x+y)^{3} \) g \( \frac{2 x+y}{15} \) h \( \frac{x}{y+7} \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) 3 Gjeni vlerën e shprehjeve për \( p=-2, q=6 \) dhe \( r=-1 \) : a \( p+q-r \) b \( 4 p-q r \) c \( 5 p q r \) d \( p^{2}+q^{2}+r^{2} \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) e \( (p+r)^{2}+2 q \) f \( (p+q)^{2}+5 r \) g \( \frac{2 p+5 q}{12-r} \) h \( \frac{2 p^{2} q}{q-2 r} \)

1. Për \( x=5 \): - a) \( 3x+7 = 3\cdot5+7 = 15+7 = 22 \) - b) \( 2+x^{2} = 2+5^{2} = 2+25 = 27 \) - c) \( 4x^{2} = 4\cdot5^{2} = 4\cdot25 = 100 \) - d) \( x-12 = 5-12 = -7 \) - e) \( 6-7x = 6-7\cdot5 = 6-35 = -29 \) - f) \( \frac{x+1}{12} = \frac{5+1}{12} = \frac{6}{12} = \frac{1}{2} \) - g) \( (x-3)^{3} = (5-3)^{3} = 2^{3} = 8 \) - h) \( \frac{4x-9}{4-x} = \frac{4\cdot5-9}{4-5} = \frac{20-9}{-1} = \frac{11}{-1} = -11 \) 2. Për \( x=4 \) dhe \( y=-3 \): - a) \( 4x+2y = 4\cdot4+2\cdot(-3) = 16-6 = 10 \) - b) \( 3x-4y = 3\cdot4-4\cdot(-3) = 12+12 = 24 \) - c) \( x^{2}+y^{2} = 4^{2}+(-3)^{2} = 16+9 = 25 \) - d) \( 5xy = 5\cdot4\cdot(-3) = -60 \) - e) \( 2xy^{2} = 2\cdot4\cdot(-3)^{2} = 2\cdot4\cdot9 = 72 \) - f) \( (x+y)^{3} = (4+(-3))^{3} = 1^{3} = 1 \) - g) \( \frac{2x+y}{15} = \frac{2\cdot4+(-3)}{15} = \frac{8-3}{15} = \frac{5}{15} = \frac{1}{3} \) - h) \( \frac{x}{y+7} = \frac{4}{-3+7} = \frac{4}{4} = 1 \) 3. Për \( p=-2 \), \( q=6 \) dhe \( r=-1 \): - a) \( p+q-r = -2+6-(-1) = -2+6+1 = 5 \) - b) \( 4p-qr = 4\cdot(-2)-6\cdot(-1) = -8+6 = -2 \) - c) \( 5pqr = 5\cdot(-2)\cdot6\cdot(-1) = 5\cdot(-12)\cdot(-1) = 60 \) - d) \( p^{2}+q^{2}+r^{2} = (-2)^{2}+6^{2}+(-1)^{2} = 4+36+1 = 41 \) - e) \( (p+r)^{2}+2q = (-2+(-1))^{2}+2\cdot6 = (-3)^{2}+12 = 9+12 = 21 \) - f) \( (p+q)^{2}+5r = (-2+6)^{2}+5\cdot(-1) = 4^{2}-5 = 16-5 = 11 \) - g) \( \frac{2p+5q}{12-r} = \frac{2\cdot(-2)+5\cdot6}{12-(-1)} = \frac{-4+30}{13} = \frac{26}{13} = 2 \) - h) \( \frac{2p^{2}q}{q-2r} = \frac{2\cdot(-2)^{2}\cdot6}{6-2\cdot(-1)} = \frac{2\cdot4\cdot6}{6+2} = \frac{48}{8} = 6 \)