5 Select the correct answer.
Which expression is equivalent to this polynomial expression?
(5ry2 + 3.12 – 7) + (312y2 – xy2 + 3y2 + 4)
OA. 9x2y2 + 4xy2 – 3
OB. &2y2 + 2xy2 – 4y2 + 4
OC. 3x2y2 + 6x y2 + 6x2 + 3
OD. 3x2,2 + 41y2 + 3:2 + 3y2 – 3
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