Which of the following expressions are equivalent to polynomial: ((6x9°) (7xy?)) – ((92'y?). (3xy')) + (8xy?)??
Select all that apply.
15x^ y11 + 8xPy4
-15x^y11 + 64x²2y4
42x^y11 – 27x^y11 + 642y4
15x^y11 + 64x²y4
42vyº – 27x^;? + 64x22y4

C. 42x⁴y¹¹ - 27x⁴y³ + 64x²y⁴

Step-by-step explanation:

((6x³y⁹)*(7xy²)) - ((9x³y²)*(3xy⁹)) + (8xy²)²

(6*7*x³*x*y⁹*y²) - (9*3*x³*x*y²*y) + (64x²y⁴)

42x⁴y¹¹ - 27x⁴y³ + 64x²y⁴

We can only add like terms together. So, that's our final answer.

you should at least use a calculater

step-by-step explanation:

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.