Answer:-2
Step-by-step explanation:
Answer:
- 4
Substitute k = 3, 4, 5, 6 into the expression and sum the terms.
2(3) - 10 + 2(4) - 10 + 2(5) - 10 + 2(6) - 10
= 6 - 10 + 8 - 10 + 10 - 10 + 12 - 10
= - 4 + (- 2) + 0 + 2
= - 4 - 2 + 0 + 2
= - 4
