Question

Разложите на множители:
1)16a^2-24ab+9b^2-4a+3b
2)2a+b+b^2-4a^2
3)1-9x^2-6xy-y^2
4)81a^2-(7x+y)^2

Answer 1

1) 4a(4a-6b-1)+3b(3b+1)
2) 2a(1-2a)+b(1+b)
3) 1-3x(3x+2y)-y^2
4) 81a^2-49x^2-14xy-y^2 = 81a^2-7x(7x+2y)-y^2

Answer 2

1) 4a(4a-6b-1)+3b(3b+1)
2) 2a(1-2a)+b(1+b)
3) 1-3x(3x+2y)-y^2
4) 81a^2-49x^2-14xy-y^2 = 81a^2-7x(7x+2y)-y^2