Tolong kasih tau jawabanya no4 dan 5

4. 36 x 4 + 9 x -2 + 5 x -1
= 144 - 18 - 5
= 144 - 23
= 121

5. 21 x 3 + 3 x -1 + 23 x -2
= 63 - 3 - 46
= 63 - 49
= 14