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Matematyka 7

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4.2. Wartości liczbowe wyrażeń algebraicznych<br />

161<br />

21<br />

1 + a <br />

2<br />

23 :<br />

a) <br />

b) k<br />

c) <br />

CZY JUŻ POTRAFISZ?<br />

1 x =−<br />

<br />

A. x + x + x + x + x<br />

B. x − ( x + 5 )<br />

2<br />

1<br />

C. x + 3x<br />

− 5<br />

D. − ( x − 3)<br />

2<br />

x +<br />

2<br />

y<br />

x−<br />

y<br />

dla x = i y =−3<br />

A. –1 B. C. D. 1<br />

3 x =<br />

<br />

A. 1001 ⋅( 101 − x )<br />

B. 2 ⋅( 102 − x )<br />

C. ( x + 102)( x −102 )<br />

D. 3x<br />

− 304 + x<br />

4 nn ( − 3)<br />

n<br />

2<br />

:<br />

22 -<br />

<br />

<br />

liczy xx<br />

5 xy<br />

-<br />

<br />

x =y =

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