at_explanation_text_math
4
[ [ x + ( 3 * 2 ) ] /2 ] + x²
[ ( x + 6 ) / 2 ] + x²
( 2x² + x + 6 ) / 2
5
[ 10 - ( x + 9 ) ] * 7
( 10 - x - 9 ) * 7
( -x + 1 ) * 7
-7x + 7
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at_explanation_text_math
4
[ [ x + ( 3 * 2 ) ] /2 ] + x²
[ ( x + 6 ) / 2 ] + x²
( 2x² + x + 6 ) / 2
5
[ 10 - ( x + 9 ) ] * 7
( 10 - x - 9 ) * 7
( -x + 1 ) * 7
-7x + 7