Factorise the following:
32x2 - 18y2
25 Likes
32x2 - 18y2 = 2(16x2 - 9y2) = 2[(4x)2 - (3y)2].
Using identity,
a2 - b2 = (a + b)(a - b).
2[(4x)2 - (3y)2] = 2(4x + 3y)(4x - 3y).
Hence, 32x2 - 18y2 = 2(4x + 3y)(4x - 3y).
Answered By
16 Likes
9x2 - 1
150 - 6a2
(x - y)2 - 9
9(x + y)2 - x2