Question

5x2y - 5x2 + 3x2y – 3y2 + x2 - y2 + 8xy2 - 3y2​

Answer 1

Answer:

8x²y - x² - 7y²

Step-by-step explanation:

= 5x²y - 2x² + 3x²y -3y² + x² - y² + 8xy²- 3y²

= 5x²y + 3x²y - 2x²+ x² - 3y² - y² - 3y²

= 8x²y - x² - 7y² (ans)

Answer 2

Answer:

5x²y+3x²y-5x²+x²-3y²-y²-3y²+8xy²

=x²y(5+3)+x²(-5+1)+y²(-3-1-3)+8xy²

=x²y(8)+x²-(-4)+y²(-7)+8xy²

=8x²y-4x²+y²(-7)+8xy²

=8x²y+8xy²-4x²-7y²