Tamara found the solution of x^2=64 to be x=8. What mistake did Tamara make in finding her solution? A. She found the incorrect square root of 64. B. She only found the square root of one side of the equation. C. She only found the positive square root, not the negative square root D. She found the cube root of 64 instead of the square root.
Mathematics · College · Tue Nov 03 2020
Answered on
Given the statement:
Tamara found the solution of x^2=64 to be x=8.
Determine the mistake of Tamara.
Explanation:
It must be taken to note that when we are solving with quadratic equations,or we are taking the roots of quadratic equations, we must consider not only the positive value, but as well as the negative values of the equation. In our case, Tamara only determined the positive value of the equation, not considering the negative value which is negative 8.
Final answer:
C. She only found the positive square root, not the negative square root