New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 8 Factorisation of Algebraic Expressions Self Practice 6D Solution
State whether or not the expression is a trinomial square. If it is, factorise the expression.
(1) a2 + 4ab + 4b2
(2) 4x2 – 4x + 1
(3) 36p2 – 60pq + 25q2
(4) x2 – 2xy – y2
(5) 49y2 – 14y + 1
(6) 9x2y2 + 6xyz + z2
(7) 4m2 + 24m + 9
SOLUTION Number 1 to 7 Solution:
(8) 16b2 – 60by + 25y2
(9) 49x4 – 112x2y2 + 64y4
(10) 25x2 + 20x + 1
(11) x2 / 9y2 – 2/15 + y2 / 25x2
(12) a2 + a + ¼
(13) 1 + 18pq + 81p2q2
(14) 4 – 20b + 25b2
(15) 4/9x2 + 16/15xy + 16/25y2
SOLUTION Number 8 to 15 Solution: