Over a million students use our free study notes to help them with their homework
(1) x + y = 2(2) 4y2 - x2 = 11 Rearrange (1) to x= 2-y & substitute x=2-y into equation (2)Simplify the new equation to 3y2+4y-15 = 0, use quadratic formu...
The first thing that you should know when wanting to find out if two lines are parallel are the features of a parallel line. These key features include never intersecting lines which means they continue f...
the first thing to do when trying to solve simultaneous equations like this one is to look for a common coefficient. one of these doesn't exist in either equation therefore you have to multiply one or bot...
the first thing to do when trying to solve simultaneous equations like this one is to look for a common coefficient. one of these doesn't exist in the equations as they are so you have to multiply one or ...
What is completing the square?Completing the square is a way of rewriting quadratic expressions in a form that can help us interpret graphs and solve quadratic equations. It involves rewriting Answered by Jack L. • Maths tutor2215 Views
←
70
71
72
73
74
→
Internet Safety
Payment Security
Cyber
Essentials
