plisbantuuuuuuuuuuuuuu

1. (2x-3) ➡️ x=2 ➡️ [2(2)-3] = [4-3] = 1 (a)
2. f(x) = (x-5) ➡️ f(-2) = [(-2)-5] = -7 (c)
3. f(x) = (2x+1)
f(5) = [2(5)+1] = [10+1] = 11
f(-2) = [2(-2)+1] = [(-4)+1] = -3
f(5)+f(-2) = 11+(-3) = 8 (d)