Evaluate x3 - 3y when x = -3 and y = 4.
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Evaluate 5|x3 - 2| + 7 when x = -2.
57
Select all that are like terms to 5a5b4.
Simplify 6 - 4[x + 1 - (y + 3)] + 5y.
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What is a simplified expression for the perimeter of the polygon?
Amir evaluated 5x - (x + 3)2 for x = 2, as shown. Describe Amir's mistake and find the correct answer. 5(2) - (2 + 3)2 = 10 + (-5)2 = 10 + 25 = 35
By the order of operations, Amir should have squared 5 and then subtracted rather than distributing the negative and squaring. 5(2) - (2 + 3)2 = 10 - (5)2 = 10 - 25 = -15 Check all of the facts that you included in your response.Amir did not follow the order of operations.Exponents should be evaluated before subtracting.The correct answer is -15.
Check all of the facts that you included in your response.
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