Question 151423
Simplify: (6x2 - 3y + 2z2) + (7y + 8x2) + (3y2 - 4x) 
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Rewrite: 
= 6x^2 -3y + 2z^2 + 7y + 8x^2 + 3y^2 -4x

= 14x^2 -4x +3y^2+ 4y + 2z^2
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Cheers,
Stan H.