Question

If p= 3, q=1, r= -2, 5= - 1 and 1 = 2 . Find the value of:

a) p2 + 49 - 4r +2s - 4 + 9
b) pq + rst​

Answer 1

Step-by-step explanation:

a)3×2+49+4×2-2×1-4+9

6+49+8-2-4+9

49+8+9

66

b)3×1+-2×-1×2

3+4

7

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