The factors of 10xy - 6x - 15y + 9 are
3x - 1 and 2y - 3
5x - 2 and 2y - 3
2x - 3 and 3y - 5
2x - 3 and 5y - 3
10xy - 6x - 15y + 9
= 2x (5y - 3) - 3(5y - 3)
= (2x - 3)(5y - 3)
The factors of the polynomial 4x 2+ 12x + 9 are
Solve the following pair of linear equations by the elimination method and the substitution method :
(i) x+y=5 and 2x−3y=4 (ii) 3x+4y=10 and 2x−2y=2(iii) 3x−5y−4=0 and 9x=2y+7(iv) x2+2y3=−1 and x−y3=3