divide the followingexpressions by the method of factorisation.. (3x²-21x+30)÷(x²-25)
find the products..
1) 3x²yz (7x²+2y+z+4w)
2) -2xyz(3x²+2y²+z²-4w²)
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Answer:
1) 21x⁴yz+6x²y²z+3x²yz²+12x²yzw
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