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Evaluate 
8r-rs when 
r=6 and 
s=5.

◻

Evaluate 8rrs8r-rs when r=6r=6 and s=5s=5. ◻

Full solution

Q. Evaluate 8rrs8r-rs when r=6r=6 and s=5s=5. ◻
  1. Substitute values into expression: Substitute r=6r = 6 and s=5s = 5 into the expression 8rrs8r - rs. 8(6)(6)(5)8(6) - (6)(5)
  2. Calculate 8(6)8(6): Calculate 8(6)8(6). 86=488 * 6 = 48
  3. Calculate (6)(5)(6)(5): Calculate (6)(5)(6)(5). 6×5=306 \times 5 = 30
  4. Subtract results: Subtract the results. 4830=1848 - 30 = 18

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