Question

find the product of (x + 2/7x^2) and (7x - x^2) and verify the result for x = -2​

Answer 1

Step-by-step explanation:

$(x + \frac{2}{7} {x}^{2} )(7x - {x}^{2} ) \\ x(7x - {x}^{2} ) + \frac{2}{7} {x}^{2} (7x - {x}^{2} ) \\ 7 {x}^{2} - {x}^{3} + 2 {x}^{3} - \frac{2}{7} {x}^{4} \\ 7 {x}^{2} + {x}^{3} - \frac{2}{7} {x}^{4}$

Answer 2

Answer:

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