Question

Find the following product and then evaluate when X=2 Y= -1

-11x(2y5 - 3/11x² y³)​

Answer 1

Step-by-step explanation:

$- 11x(2 {y}^{5} - \frac{3}{11} {x}^{2} {y}^{3} ) \\ = - 22x {y}^{5} + 3 {x}^{3} {y}^{3} \\ put \: x = 2.y = - 1 \\ = - 22 \times 2 \times ({ - 1})^{5} + 3 \times ( {2}^{3} ) \times ( { - 1})^{3} \\ = - 44 \times - 1 + 3 \times 8 \times - 1 \\ = 44 - 24 \\ = 20$

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Answer 2

=−44×−1+3×8×−1

=44−24

=20