Q. Solve for u.u2=9Write your answers as integers or as proper or improper fractions in simplest form.u= _____ or u= _____
Identify Equation: Identify the equation to solve.We have u2=9.To find the value of u, we need to take the square root of both sides of the equation.
Take Square Root: Take the square root of both sides of the equation.u2=9This gives us two possible solutions for u because the square root of a number can be both positive and negative.
Find Positive Solution: Find the positive square root of 9.u=9u=3This is the positive solution.
Find Negative Solution: Find the negative square root of 9. Since the square of both positive and negative numbers is positive, we also have: u=−9u=−3 This is the negative solution.
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