Answer:
4) b^10
5) 15x^11y^6
6) 8y^5x + 3x
Step-by-step explanation:
b^6 + b^4 = b^10 because this is multiplication. So you have to add the degrees
(3x^3y^5)(5x^8y^1) = 15x^11y^6. This is because
3 *5 = 15.
x^3 +x^8 = x^11
y^5 + y^1 = y^6.
You have to add the degrees since this is also multiplication.
(2y^2)(4xy^3) + 3x = 24y^5x^2. This is because
2 * 4 = 8
y^2 + y^3 = y^5
x + 0 = x
Therfore, it is (8y^5x) + 3x as the final answer.
