Completing the Square
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Quadratic Equation | An equation that can be written in the form of
ax^2+bx+c=0
where a, b and c are all real numbers and a is not 0.
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| Second-Degree Equation | Another term for Quadratic Equation
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| Square Root Property | If b is a real number and if
a^2=b
then
a = +/- b^1/2
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| x^2+8x+16 | (x+4)^2
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| x^2-6x+9 | (x-3)^2
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| x^2+3x+9/4 | (x+3/2)^2
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| Completing the Square | The process of writing a quadratic equation so that one side is a Perfect Square Trinomial.
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| Solving a Quadratic Equation in X by Completing the Square | ((1.)) Divide/multiply both sides of the equation to make a = 1.
((2.)) Isolate the variables.
((3.)) Add the square of (1/2b) to both sides of the equation.
((4.)) Factor the perfect square trinomial.
((5.)) Solve for x using Square Root Property.
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| Simple Interest Formula | I=Prt
I: interest earned
P: Principle
r: rate of interest
t: time in years
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| Compound Interest Formula | A=P(1+r)^t
A: total amount of money
P: original investment
r: interest rate per compounding period
t: the number of periods
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Created by:
m0697095
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