Solving equations by completing the square


Assignment:

Q1) Solve by the square root property

(2x + 5)^2 = 81

Q2) Solve by completing the square

x^2 + 6x - 4 = 0

Q3) Solve by any method

4x^2 - 7x + 5 = 0

Q4) Solve by any method

25x^2 - 64 = 0

Q5) Solve by any method

x^2 + 6x -1 = 0

Q6) Solve by any method

x^2 - 2x = 8

Q7) Solve by any method

(x - 3)(2x + 2) = -15

Q8) Solve by any method

25x^2 + 9 = 0

Q9) What are the x intercepts of:

y = 2x^2 - 10x + 8

Q10) What are the y intercepts of:

y = - 2x^2 + 10x - 8

Q11) If f(x) = -3x^2 - 4x + 5, evaluate for f(-2) and f(3)

Q12) If a right triangle has sides (or legs) of 7 and 24, what is the hypotenuse side equal to? (Pythagorean Theorem)

Q13) If a right triangle has sides of 12 and 5, what is the hypotenuse side equal to?

Q14) If a right triangle has a hypotenuse side equal to 13 and one side equal to 5 what is the other side?

Q15) If a right triangle has a hypotenuse side equal to 16 and one side equal to 9 what is the other side?

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Algebra: Solving equations by completing the square
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