"What is the answer of ???? 4x to the power of 2 y -3 x y to the power of 2 +15x y -12 +9x y to the power of two -14 x y +19 -13 x to the

"What is the answer of ???? 4x to the power of 2 y -3 x y to the power of 2 +15x y -12 +9x y to the power of two -14 x y +19 -13 x to the power of 2 y +7 x y to the power of 2 +16 x y +21 ----------------------------------------------------------------------------------------- PLEASE I NEED TO DO MY HOMEWORK BECAUSE THE DEADLINE IS TOMORROW ! !"
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Guest [Entry]

"4x^2y - 3xy^2 + 15xy - 12 + 9xy^2 - 14xy + 19 - 13x^2y + 7xy^2 + 16xy + 21

Soln

= 4x^2y - 13x^2y - 3xy^2 + 9xy^2 + 7xy^2 + 15xy - 14xy + 16xy - 12 + 19 + 21
= -9x^2y + 13xy^2 + 17xy + 28"