639÷9=71. You can check your answer by doing 71x9=639
Answer:
2nd option
Step-by-step explanation:
Express the sum of the 2 polynomials by removing the parenthesis , so
5 - 2x³ + x + 4 - 3 + 2x³ - 5x ← collect like terms
= 9 - 3 - 4x
Is the 2 a exponent?
If it is the answer is for that:
-3x^2+12x
=3x(-x+4)
=3x(-x+4)