Answer:
a. 9x^4
b. 3 x^5y
Step-by-step explanation:
a. 5x^4 + 4x^4
Combine like terms
9x^4
b. 12x^5 y − 9x^5 y
Subtract like terms
3 x^5y
The correct answer is <span>6x^4 −2x^3 + 26x^2 +x + 14.</span>
9, -12, 24
The zeroes are the numbers in the parentheses with the opposite signs (-9 becomes 9, 12 becomes -12, and -24 becomes 24)
