![]() Later when we solve quadratic word problems, my students can choose to solve by factoring or with the. If you misunderstand something I said, just post a comment. After we factor, we move onto the Quadratic Formula. I can see that -12 * 1 makes -11 which is not what I want so I go with 12 * -1. I can clearly see that 12 is close to 11 and all I need is a change of 1. My other method is straight out recognising the middle terms. Here we see 6 factor pairs or 12 factors of -12. What you need to do is find all the factors of -12 that are integers. Step 5: Check each of the roots in the ORIGINAL quadratic. Step 4: Once ( ) are separated, set each ( ) to 0 and solve for the variable. I use a pretty straightforward mental method but I'll introduce my teacher's method of factors first. Step 3: After the problem has been factored we will complete a step called the T chart. So the problem is that you need to find two numbers (a and b) such that the sum of a and b equals 11 and the product equals -12. ![]() This hopefully answers your last question. The -4 at the end of the equation is the constant. In the standard form of quadratic equations, there are three parts to it: ax^2 + bx + c where a is the coefficient of the quadratic term, b is the coefficient of the linear term, and c is the constant. ![]()
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