please answer the (e) sum
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Answer:
3x(x +1 ) -2(y +2)
Step-by-step explanation:
3x^2 - 4y +3x -[(x^2 -(x^2 + y) -2y +4]
= 3x^2 - 4y +3x -[x^2 - x^2 -y +2y + 4]
= 3x^2 -4y +3x - 0 + y - 2y - 4
= 3x^2 - 4y +3x + 2y - 4
= 3x^2 +3x -2y - 4
= 3x(x +1 ) -2(y +2)
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