7. A box contains 5 balls. Two are numbered '7', two are numbered '8', and one ball is numbered '9'.
1 answer:
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Answer:
Answer: Third option is the right answer.
Step-by-step explanation:
First we the write the expression
Now teacher says that the product of these polynomials will result in the sum of
Now the teacher ask if we put the value of a = 2x and b = 1 then what will be the expression look like.
=
So third option is looking like our expression.