Question

yar I need help please iss question ko copy pay kro
aur step by step kro please
Please​

Answer 1

Step-by-step explanation:

1. 3x^2-4+4x+3y

2. 5x^4-x^2-3

Answer 2

i)

$(3x^{2}-4+3x)+2y+(x+y)\\=3x^{2}-4+3x+2y+x+y\\=3x^{2}-4+4x+3y\\=3x^{2}+4x+3y-4$

Therefore, your answer is $3x^{2}+4x+3y-4$.

ii)

$(5x^{4}-3x^{2}+4)+(6x^{2}-4x^{2}-7)\\=5x^{4}-3x^{2}+4+6x^{2}-4x^{2}-7\\=5x^{4}-x^{2}-3$

Therefore, your answer is $5x^{4}-x^{2}-3$.

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