Question

Multiply the following and verify the result for x = 1, y = - 2 and z = 3.
- 7yz (x²y + 3x^3)​

Answer 1

Step-by-step explanation:

-7×(-2)×3[1²×(-2)+3(1)³] = 42(-2+3) = 42×1 = 42

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