Solutions/roots to a quadratic equation are given by the following formula (which is given in the formula list). ... 2a D, the discriminant of the equation = b2- 4ac, when (i) D agt; 0, the equation has two real and unequal roots, A and B. (See figures ianbsp;...
|Title||:||Longman effective guide to 'O' level additional mathematics|
|Author||:||Bee Hoo Ong|
|Publisher||:||Pearson Education South Asia - 2007-06-04|