It means you are required to "solve" a quadratic equation by factorising the quadratic equation into two binomial expressions. Solving means to find the value(s) of the variable for which the expression equals zero.
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That means that both of your brackets will have minus signs.
If that were x^2 - 3x - 4, it would be (x + 1)(x - 4) As it is, it doesn't factor neatly. Applying the quadratic formula, we find two real solutions. (3 plus or minus the square root of 41) divided by two. x = 2.350781059358212 x = -0.8507810593582121
Memory. It's the button that saves your current number, and when you press MRC, or Memory ReCall, the number is restored, giving you a great way to add two products if you have a basic calculator, or to do otherwise impossible equations that have many separate parts.
In doing the factor tree, you can start with any two factors of the given number. These factors maybe prime or composite. But the resulting factors in the factor tree should always be prime numbers. It means that you have to continue factoring unless you ended up with all prime factors.
In mat, to factor something means to make the greatest common factor distribute to the rest. (This is hard >.<). Basically factoring means to turn that expression in a distributive expression. For example: The question tells you to factor 93+36 So you find the greatest common factor, which is 3 You put 3 as the number distributing the number 93/3=31 36/3=12 The quotient become the numbers you put in your parentheses So the final answer will be like this : 3(31+12) Sorry Its hard explaining math :P