Herleid.
1p
\(8 x - 9 x\)
○
\(8 x - 9 x = -x\)
1p
Herleid.
1p
\(-5 x - 4 x\)
○
\(-5 x - 4 x = -9 x\)
1p
Herleid.
1p
\(-5 x y - 3 x y\)
○
\(-5 x y - 3 x y = -8 x y\)
1p
Herleid.
1p
\(-x + 0\)
○
\(-x + 0 = -x\)
1p
Herleid.
1p
\(-3 x - 4 y + 5 x\)
○
\(-3 x - 4 y + 5 x = 2 x - 4 y\)
1p
Herleid.
1p
\(a - 8 b - 6 b\)
○
\(a - 8 b - 6 b = a - 14 b\)
1p
Herleid.
1p
\(7 p + q + 4 p - 2 q\)
○
\(7 p + q + 4 p - 2 q = 11 p - q\)
1p
Herleid.
1p
\(-4 a + 2 + 8 a + 6\)
○
\(-4 a + 2 + 8 a + 6 = 4 a + 8\)
1p
Herleid.
1p
\(-5 p + -3 q + 2 p\)
○
\(-5 p + -3 q + 2 p = -3 p - 3 q\)
1p
Herleid.
1p
\(-4 x - -2 x - 7 y\)
○
\(-4 x - -2 x - 7 y = -2 x - 7 y\)
1p
Herleid.
1p
\(6 a - 9 a b + 4 b - 3 a b\)
○
\(6 a - 9 a b + 4 b - 3 a b = 6 a + 4 b - 12 a b\)
1p
Herleid.
1p
\(6 x y - 3 y + 9 x y + 3 y\)
○
\(6 x y - 3 y + 9 x y + 3 y = 15 x y\)
1p
Herleid.
1p
\(2 a + 7 b\)
○
Kan niet korter.
1p
Herleid.
1p
\(-9 x - 3 x y\)
○
Kan niet korter.
1p
Herleid.
1p
\(x + x + x + x + x + x + x + x\)
○
\(x + x + x + x + x + x + x + x = 8 x\)
1p
Herleid.
1p
\(a + 9 a\)
○
\(a + 9 a = 10 a\)
1p
Herleid.
1p
\(6 x y + x y\)
○
\(6 x y + x y = 7 x y\)
1p
Herleid.
1p
\(3 p + 7 p + 4 p\)
○
\(3 p + 7 p + 4 p = 14 p\)
1p
Herleid.
1p
\(7 x - 7 x\)
○
\(7 x - 7 x = 0\)
1p
Herleid.
1p
\(-3 a ⋅ 2\)
○
\(-3 a ⋅ 2 = -6 a\)
1p
Herleid.
1p
\(9 x ⋅ 6 y\)
○
\(9 x ⋅ 6 y = 54 x y\)
1p
Herleid.
1p
\(-2 x ⋅ -5 y\)
○
\(-2 x ⋅ -5 y = 10 x y\)
1p
Herleid.
1p
\(-8 a ⋅ -7 a\)
○
\(-8 a ⋅ -7 a = 56 a^{2}\)
1p
Herleid.
1p
\(-3 p ⋅ q ⋅ 4 r\)
○
\(-3 p ⋅ q ⋅ 4 r = -12 p q r\)
1p
Herleid.
1p
\(-2 p ⋅ 5 q ⋅ 4 p\)
○
\(-2 p ⋅ 5 q ⋅ 4 p = -40 p^{2} q\)
1p
Herleid.
1p
\(0 ⋅ -3 x\)
○
\(0 ⋅ -3 x = 0\)
1p
Herleid.
1p
\(2 p ⋅ 4 p q\)
○
\(2 p ⋅ 4 p q = 8 p^{2} q\)
1p
Herleid.
1p
\(-4 b ⋅ 5 ⋅ -2 a b\)
○
\(-4 b ⋅ 5 ⋅ -2 a b = 40 a b^{2}\)
1p