factorise 9 x square - 12 x minus y square minus z square minus 2 y z + 4 a square
Answers
Answered by
2
Step-by-step explanation:
9x²-12x-y²-z²-2yz+4a²
3x(3x-4) - (y+z)² + 4a²
Answered by
0
Answer:
9x^2-12x-y^2-z^2-2yz+2a
3x-12x-y-z-2yz+2a
-9x-y-z-2yz+2a
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