Question

i) pq(p^2-q^2+1)
ii) (x^2-y^2)(4x^3-y^3)
iii) (9/11a-2/33b) (a-b)​

Answer 1

$1) \: pq( {p}^{2} - {q}^{2} + 1) \\ = {p}^{3} q - p {q}^{3} + pq$

$2) \: ( {x}^{2} - {y}^{2} )(4 {x}^{3} - {y}^{3} ) \\ = 4 {x}^{5} - {x}^{2} {y}^{3} - 4 {x}^{3} {y}^{2} + {y}^{5}$

$3) \: ( \frac{9}{11} a - \frac{2}{33} b)(a - b) \\ = \frac{9}{11} {a}^{2} - \frac{9}{11} ab - \frac{2}{33} ab + \frac{2}{33} {b}^{2}$

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Answer 2

Answer:

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