Factorise
4(2x+3y)^2−9(2x−3y)^2
Answers
Answered by
1
Answer:
Answer⏬⏬
4(2x-3y)2-8x+12y-3
= 4(2x-3y)²-4(2x-3y) - 3
Let us assume that 2x - 3y = a
Then the given expression is
4(2x-3y)2-8x+12y-3
= 4a²-4a-3
= 4a²-6a + 2a-3
= 2a(2a-3) + 1(2a-3)
= (2a-3)(2a + 1)
= [2(2x-3y) - 3 ][ 2(2x-3y) + 1]
= (4x - 6y - 3)(4x - 6y + 1)
Similar questions