plz give ans of c and d part plz give with explanation fast plz I will follow and mark brainliest
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Answer:
(c) x³ - 40x + 153x - 324
(d) 5x³y² - x³y³ + x²y⁴ + 5x²y - x²y² + x y³- 4xy - 4
Step-by-step explanation:
(c) (x - 36) × (x² - 4x + 9)
=> x³ - 4x² + 9x - 36x² + 144x - 324
= x³ + (- 36x²- 4x²) + ( 144x + 9x) - 324
= x³ - 40x + 153x - 324
(d) (xy + 1) × (5x²y - x²y² + xy³ - 4)
=> 5x³y² - x³y³ + x²y⁴ - 4xy + 5x²y - x²y² + x y³ - 4
There are no same degree elements to add or subtract.
So the answer is
5x³y² - x³y³ + x²y⁴ + 5x²y - x²y² + x y³- 4xy - 4
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