1.

Fill in the blanks to make the statement true.If (x2y + y2 + 3) is subtracted from (3x2y + 2y2 + 5), then coefficient of y in the result is ________.

Answer»

If (x2y + y2 + 3) is subtracted from (3x2y + 2y2 + 5), then coefficient of y in the result is 2x2.

(x2y + y2 + 3) is subtracted from (3x2y + 2y2 + 5)

= (3x2y + 2y2 + 5) – (x2y + y2 + 3)

= 3x2y + 2y2 + 5 – x2y – y2 – 3

= (3x2y – x2y) + (2y2 – y2) + (5 – 3)

= 2x2y + y2 + 2



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