please answer the question
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g.
rewrite in order
(45x²y²z² + 36x²y²z² + 18x²y²z²) ÷ 9xyz
99x²y²z² ÷ 9xyz = 11xyz
h.
2xy (xy - 1) x 1 = xy - 1 (-2x²y² + 4x²y² = 2x²y²)
2xy
i)
{ (-2)⁴ x²z³y + 2⁴z²x⁴ - 4z⁴y⁴} ÷ 2z²
= { 16x²z³y + 16z²x⁴ - 4z⁴y⁴} ÷ 2z²
= 2z² (8x²zy + 8x⁴ - 2z²y⁴) x 1
2z²
= 8x²zy + 8x⁴ - 2z²y⁴ or 2³x²zy + 2³x⁴ - 2z²y⁴
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