Question

The value of expression 5n² + 5n - 2, for n = - 2 is ______

Answer 1

Answer:

5×-2²+5×-2-2

-10²-10-2

-20-10-2

-30-2

-32 is answer

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Answer 2

Given:

We have given expression is  5n² + 5n - 2.

To Find:

We have to find the value for n=-2.

Step-by-step explanation:

• We have given equation is  5n² + 5n - 2.

• For finding the value at n=-2 we just put the value as n=-2 in given equation

• By doing so we get

                           [tex]5n^2+5n-2\\ At ,n=-2\\ =5(-2)^2+5(-2)-2\\ =5(4)-10-2\\ =20-12\\ =8[/tex]

Thus, value at n=-2 is 8.