Solving Equations
Not what you're looking for?
How do you solve these? Please show steps.
Use Quadratic formula Don't forget "i"
1) Solve by the square root property
(2x + 5)^2 = 81
2) Solve by completing the square
x^2 + 6x - 4 = 0
3) Solve by any method
4x^2 - 7x + 5 = 0
4) Solve by any method
25x^2 - 64 = 0
5) Solve by any method
x^2 + 6x -1 = 0
6) Solve by any method
x^2 - 2x = 8
7) Solve by any method
(x - 3)(2x + 2) = -15
8) Solve by any method
25x^2 + 9 = 0
9) What are the x intercepts of:
y = 2x^2 - 10x + 8
10) What are the y intercepts of:
y = - 2x^2 + 10x - 8
11) If f(x) = -3x^2 - 4x + 5, evaluate for f(-2) and f(3)
12) If a right triangle has sides (or legs) of 7 and 24, what is the hypotenuse side equal to? (Pythagorean Theorem)
13) If a right triangle has sides of 12 and 5, what is the hypotenuse side equal to?
14) If a right triangle has a hypotenuse side equal to 13 and one side equal to 5 what is the other side?
15) If a right triangle has a hypotenuse side equal to 16 and one side equal to 9 what is the other side?
Purchase this Solution
Solution Summary
Thirteen equations are solved. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.
Purchase this Solution
Free BrainMass Quizzes
Probability Quiz
Some questions on probability
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.