oblicz wartości liczbowe wrażenia.
-y+8x-z-2x dla x =-2 y = 6 z = -3
(9y - (7y+x )+2 (6x-7y) dla x=-2 y = 3
usuń nawiasy i wykonaj redukcje wyrazów podobnych .
3(6-5a)-(3b+a)
4(x/4 +9/4) - 5 ( 3x/5- 7g/5)
prosze podszebuje tego natychmiast dam NAJ
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-y+8x-z-2x dla x =-2 y = 6 z = -3
- 6 + 8 *(-3) - 2 * - 3 = -6 - 24 +6 = - 24
(9y - (7y+x )+2 (6x-7y) dla x=-2 y = 3
( 9 * 3 - 7 * 3 + 2 ) + 2 = (27 - 21 + 2) + 2 = 10
3(6-5a)-(3b+a)
18 - 15a - 3b + a
4(x/4 +9/4) - 5 ( 3x/5- 7g/5)
Zad1.
-y+8x-z-2x =
-6+8*(-2)-3-2*(-2)=
-6-16-3+4 =
-24
[9y - (7y+x )+2 (6x-7y)] =
9 *3-7*3-2+2+2+6 *(-2) -7*3 =
27-21-24+2-12-21 =
-49
Zad2.
3(6-5a)-(3b+a) =
18 - 15a - 3b- a =
18- 14a -3b
4(x/4 +9/4) - 5 ( 3x/5- 7g/5) =
4x/4 + 36/4 -15x/5 + 35g/5 =
28x/30 + 36/4 - 90x/30 + 35g/5
-62x/30 + 36/4+ 35g/5