Bogstavregning - VUC Aarhus
Bogstavregning - VUC Aarhus
Bogstavregning - VUC Aarhus
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Matematik på AVU<br />
Opgaver til niveau G<br />
18: Hvilke udtryk er ens<br />
a: 4x + 3y + 5x − y + 6 A: x − 3y + 3<br />
b: 6x + 2y + 4 − x + 7y<br />
− 9 B: 3x + 7y + 7<br />
c: 3x − 5y − 2x + 3 + 2y C: x + 3y − 5<br />
d: 9 + 4y − 2x + 3y − 2 + 5x<br />
D: 9x + 2y + 6<br />
e: y − 3x − 5 − x + 2y + 5x E: 5x + 9y − 5<br />
19: Reducer disse udtryk:<br />
a: 5a + 3b − 2a + b<br />
b: a + 7b − 2b + 3a − b<br />
c: x + 7y + 4 + 2x − y<br />
d: c + 2d + 3 − 7d − 4<br />
e: 2u − 3v − 8u + 5 + 4v<br />
f: 2a + 4b + c − b + 3a − 5c<br />
20: Hvilke udtryk er ens<br />
a: a ⋅ a ⋅ a ⋅ a<br />
A: a<br />
b: a + a + a + a<br />
B:<br />
3<br />
2a<br />
c:<br />
2 2<br />
a + 2a<br />
C: 3a<br />
d: 2 ⋅ 5a − 4a<br />
D: 4a<br />
e: 10a : 2 − 2a<br />
E: 6a<br />
f: a ⋅ a ⋅ a + a ⋅ a ⋅ a<br />
F:<br />
2<br />
3a<br />
6a<br />
g: − a<br />
G:<br />
3<br />
4<br />
a<br />
21: Reducer disse udtryk:<br />
a: 2 ⋅ 3a + 5 + 4a − 3<br />
b: 3 + 4 ⋅ 3b − 7b + 7<br />
c: 4y + 5⋅<br />
3x + 8 ⋅ 2y − 7x<br />
2 2<br />
2<br />
2<br />
d: 12x : 3 + 5x − 4 ⋅ 2<br />
e: 4c + 2c − 3 − 2<br />
f: 7u − 2u + 5u + 6u<br />
2<br />
g: z ⋅ z + 2 + 5z − 2 ⋅3<br />
h:<br />
9a<br />
8b<br />
+<br />
4<br />
2<br />
⋅ a ⋅ a − 2 − 6a ⋅ a i: 6 4b 8<br />
+<br />
−<br />
<strong>Bogstavregning</strong> Side 79