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1. If a = -3, then a³+ 2a+6 = ____
2.pn+(n+m)² ; if m=1, n=4 and p= -3
3.2x - y ; if x = 3/4 and y= -1/2
4.If n = 24, then n_+5 = ___ 3
5.If a =2 and b = -8, then (a+b)² = ___
6.If d = 1/3, then 6d + 11=___
7.If y= -4, then the value of y² + 3 is ___
8.If x = -5, then 2ײ - 50 is ___
9.If x = -2, y = 4, then 2x - y is ___
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Answer:
1. -27
2. 13
3. 2
5. 37
7. 19
8. 0
9. -8