Jawapan

2016-09-07T04:06:31+08:00
A. (x-2)(x+8)
b. (2x-3y)(4x+5y)
c. ?????
d. (a-1)(9a+1)
e. (7x-2)²
2016-09-11T08:16:27+08:00
A. (x + 8)(x - 2)
b. 2x(4x - y) - (3y)(5y)
   = (2x - 3y)(4x + 5y)
c. Soalan tidak betul
d. (9a + 1)(a - 1)
e. (7x - 2)(7x - 2)