Question

factorise 9 X square + 16 y square + 4 z square + 24 x y - 16 Y Z - 12 ZX​

Answer 1

Answer:

$9x {}^{2} + 16y {}^{2} + 4z {}^{2} + 24xy - 16yz - 12zx \\ (3x) {}^{2} + (4y) ^{2} ( - 2z) {}^{2} + 2 \times 3x \times 4y + 2 \times 4y \times - 2z + 2 \times - 2z \times 3x \\ (3x + 4y - 2z) {}^{2} \\ (3x + 4y - 2z)(3x + 4y - 2z$