Question

factorise 9 x square - 12 x minus y square minus z square minus 2 y z + 4 a square​

Answer 1

Step-by-step explanation:

9x²-12x-y²-z²-2yz+4a²

3x(3x-4) - (y+z)² + 4a²

Answer 2

Answer:

9x^2-12x-y^2-z^2-2yz+2a

3x-12x-y-z-2yz+2a

-9x-y-z-2yz+2a