若×=3.2,y=6.8,则ײ+2×y+y²=
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若×=3.2,y=6.8,则ײ+2×y+y²=
若×=3.2,y=6.8,则ײ+2×y+y²=
若×=3.2,y=6.8,则ײ+2×y+y²=
ײ+2×y+y²
=(x+y)²
=(3.2+6.8)²
=10²
=100
若×=3.2,y=6.8,则ײ+2×y+y²=
若×=3.2,y=6.8,则ײ+2×y+y²=
若×=3.2,y=6.8,则ײ+2×y+y²=
ײ+2×y+y²
=(x+y)²
=(3.2+6.8)²
=10²
=100