G(-4) = 4^2 + 3(-4) - 2
16 - 12 - 2
4 - 2
answer: 2
Patterns allow someone to make educated guesses.
S = a*((1 - r^(n+1))/(1-r))
S = 1*((1 - 2^(7+1))/(1-2))
S = 1*((1 - 2^8)/(1-2))
S = 1*((1 - 256)/(1-2))
S = 1*((-255)/(-1))
S = 255
So 1+2+4+8+...+128 = 255
10X^2 + 15x-34x -51
5x (2x+3)-17(2x+3)
(5x-17) (2x+3)
267 is what the answer is sorry if it’s wrong
