Additional Maths Quadratic Equations

Solving Quadratic Equations

REMEMBER, that in a quadratic equation:

1. We are trying to find out the solution to x which makes the left hand sideof the = sign equal theright hand side of the = sign
2. There will always be two solutions. This is because the x is to the power of 2
3. It is always necessary to check the solutions to make sure that you really do have the correct answers and have not made any mistakes along the way
4. A negative number multiplied by a positive number will always be a negativenumber whereas a positive number multiplied by a positive number will be apositive number
5. In some questions they substitute the letter x for another letter although in essence you use the same method for finding the value of that letter

A Data-Based Model to Predict Postsecondary Educational Attainment ... - RedOrbit

A Data-Based Model to Predict Postsecondary Educational Attainment ... RedOrbit, TX - Jun 6, 2008 Because no variables exhibited quadratic tendencies, variables were defined as ordinal or interval in the following equations. Only small changes in the ...

Students pitch in for blind friends - Monterey County Herald

Students pitch in for blind friends Monterey County Herald, CA - Jun 7, 2008 The quadratic and algebraic equations in Mia Cairus' math textbook were dizzying to compute without a handheld calculator or electronic device. ...

Half a million lost mathematicians? These figures don't add up - Guardian Unlimited

Half a million lost mathematicians? These figures don't add up Guardian Unlimited, UK - Jun 9, 2008 I don't agree with Simon Jenkins' view that the study of mathematics is "a waste of time" (Maths? I breakfasted on quadratic equations, but it was a waste ...

The Derivation of "Logistic-shaped" Discovery - The Oil Drum

The Derivation of "Logistic-shaped" Discovery The Oil Drum - Jun 26, 2008 The following math derivation I extended from the original dispersive discovery equation explained in my TOD post "Finding Needles in a Haystack" (read this ...