simplify the following. in detail
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Step-by-step explanation:
(ii) 2/5x^2y × (-1/2 z^2) × (-15y^2xz)
= {2/5 × (-1/2) × (-15)} × x × x × x × y × y × y × z × z × z
= 3x^3y^3z^3
(iv) -5p^2q × 8/15pqr^2 × (-1/4r) × (-2/3pq^2)
= {(-5) × 8/15 ×( -1/4) × (-2/3)} × p × p × p × p × q × q × q × q × r × r × r
= -4/9p^4q^4r^3
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