Answer:
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Given that the last term is -3x^4, the polynomila is ordered in descending order of the exponent of x. Then, the first term is that where y is with the highest exponent, that is y^4
Simplify the terms with y^4: -2y^4 + 6y^4 = 4y^4
Then the first term is 4y^4
Answer:
I am good!
Step-by-step explanation:
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Answer:
option A
Step-by-step explanation:

(7 times 200)plus (7 times 50) plus (7 times 6)