wee_ws SG Hi, a^2 - a - 12 = (a - ?)(a + ?) 2a^2 - 4 = 2(a^2 - 2) = 2(a - ?)(a + ?) a^2 + a = a(...) It's not difficult if you deal with the problem part by part. Thanks!Cheers, Wen Shih
wee_ws SG Hi, I am looking only at each coefficient of and the constant terms. Thanks!Cheers, Wen Shih
SBS n SMRT SG Hi, I am looking only at each coefficient of and the constant terms. Thanks!Cheers, Wen ShihOIC
787180 SG As suggested by wee_ws.(a-4)(a+3)x2+2(a2-2)+a(a+1)...then take out what is common? How to continue..x2 means x to power of 2a2 means a to power of 2/