计算题数学求解答
3个回答
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(√5+2)²+(√5-2)²
=5+4√5+4+5-4√5+4
=18
(√3-3√12-6)x2√3+5√3
=6-6√36-12√3+5√3
=6-36-7√3
=-30-7√3
-81¾÷∣-2∣³+(16/49)﹣½
=-27÷8+7/4
=-27/8+14/8
=-13/8
[√(3-√10)]²+(5-√7)º
=√10-3+1
=√10-2
5√4x√8÷10√32
=5√32÷10√32
=0.5
(7½-5½)⅓x(7½+5½)⅓
=[(7½-5½)(7½+5½)]⅓
=(7-5)⅓
=2⅓
=³√2
=5+4√5+4+5-4√5+4
=18
(√3-3√12-6)x2√3+5√3
=6-6√36-12√3+5√3
=6-36-7√3
=-30-7√3
-81¾÷∣-2∣³+(16/49)﹣½
=-27÷8+7/4
=-27/8+14/8
=-13/8
[√(3-√10)]²+(5-√7)º
=√10-3+1
=√10-2
5√4x√8÷10√32
=5√32÷10√32
=0.5
(7½-5½)⅓x(7½+5½)⅓
=[(7½-5½)(7½+5½)]⅓
=(7-5)⅓
=2⅓
=³√2
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