Question

The value of the expression 5n² + 5n - 2 ,when n = -2​

Answer 1

Answer:

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$n = - 2 \\ \\ {5n}^{2} + 5n - 2 \\ \looparrowright \: 5( { - 2}^{2} ) + 5( - 2) - 2 \\ \looparrowright5 \times 4 + ( - 10) - 2 \\ \looparrowright2 - 10 - 2 \\ \looparrowright - 10$

Answer 2

Answer:

5(-2) ×2+5(-2) -(-2)