Evaluate the expression for x = 3, y = 1/3 , and z = 5. 12x − 3y / 4x − z
2 answers:
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Answer:
Step-by-step explanation:
25 = 5*5 or -5 * -5
yes, that is correct. However, you forgot another property of roots. Roots are simply exponential fractions.
Therefore, can also be rewritten as:
. Notice that it cannot be -25 because that would be a negative square root which will give us an imaginary number.