Question

solve the expression n=2, 5n²+5n-2​

Answer 1

Answer:

putting n=2 in the equation

5(2)2+5(2)-2

198 is the required answer of this question

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Answer 2

Step-by-step explanation:

$5 {n}^{2} + 5n - 2 \\ substituting \: n \: = 2 \: in \: the \: equation \\ = 5 \times {2}^{2} + 5 \times 2 - 2 \\ = 5 \times 4 + 10 - 2 \\ = 20 + 10 - 2 \\ = 30 - 2 \\ = 28$