Question

calcular a soma dos 8 primeiros termos da pa(4,7.10...)?

Answer 1

$4+7+10+13+16+19+22+25=4. (4+25)=4.29=116~~~~~~~~~~~~~$

Answer 2

4+7+10+13+16+19+22+25
4+25 = 29
7+22 = 29
10+19 = 29
13+16 = 29

4*29 = 116
29+29+29+29 = 116