Question

from the sum of 3 x ki power 2 minus 5 x + 8 and minus 6 x ki power 2 + 7, subtract minus 9 x minus 1

Answer 1

3x^2-5x+8+6x^2+7-(9x-1)
9x^2-5x+8-[9x-1]
9x^2-5x+8-9x+1
9x^2-14x+9