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Evaluate the expression for k=−5k = -5.\newline−4k=-4k = _____

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Full solution

Q. Evaluate the expression for k=−5k = -5.\newline−4k=-4k = _____
  1. Write −4k-4k: Write −4k-4k after substituting k=−5k = -5.\newlineSubstitute −5-5 for kk in −4k-4k.\newline−4(−5)-4(-5)
  2. Substitute −5-5 for kk: Evaluate −4(−5)-4(-5).−4(−5)-4(-5)=20= 20

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