Question

(vii) 7xy + 5x2 – 7y2 + 3 from 7x2 – 8xy + 3y2 – 5
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Answer 1

Answer:

this is answer

and u not told what bodmas rule we should rule

so doubtfully I am sending answer

Answer 2

$7x2 - 8xy + 3y2 - 5 - (7xy + 5x2 - 7y2 + 3) \\ 7x2 - 8xy + 3y2 - 5 - 7xy - 5x2 + 7y2 - 3 \\ 7x2 - 5x2 - 8xy - 7xy + 3y2 + 7y2 - 5 - 3 \\ 3x2 - 15xy + 10y2 - 8$

above is the solution