add 7 x square - 6 X + 4 and 2 X square + 9 x minus 10
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(7x square -6x+4)+(2x square+9x -10)
9 x square+3x -6
9 x square+3x -6
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=42+4=46×2=92+9=101×10
=1010Ans
=1010Ans
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