Multiply the following and verify the result for x = 1, y = -2 and z = 3.
- 7yz (x²y + 3x³)
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Answer:
-42
Explanation:
7yz(x²y+3x²)
=7x²y²z+21x²yz
=7xyz( xy+3x)
=7×1×(-2)×3(1×(-2)+3×1)
=-42×1
= -42
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