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 $$ \frac{2 p^{2} q}{q-2 r} $$

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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) $$ \frac{2p^{2}q}{q-2r} = \frac{2\cdot(-2)^{2}\cdot6}{6-2\cdot(-1)} = \frac{2\cdot4\cdot6}{6+2} = \frac{48}{8} = 6 $$
1. For $$ x=5 $$: - a) 22 - b) 27 - c) 100 - d) -7 - e) -29 - f) 0.5 - g) 8 - h) -11 2. For $$ x=4 $$ and $$ y=-3 $$: - a) 10 - b) 24 - c) 25 - d) -60 - e) 72 - f) 1 - g) 1/3 - h) 1 3. For $$ p=-2 $$, $$ q=6 $$, and $$ r=-1 $$: - a) 5 - b) -2 - c) 60 - d) 41 - e) 21 - f) 11 - g) 2 - h) 6

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