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Multiply 96 by two natural numbers a and B to get a sum of squares and a cubic number. The minimum sum of the two numbers a and B is______ ．
After 96 = 2 × 2 × 2 × 2 × 2 × 3 times 96, the minimum square number is 96 × 3 × 2 = 576, the minimum cubic number is 96 × 2 × 3 × 3 = 1728, the minimum of a is 3 × 2 = 6, the minimum of B is 3 × 3 × 2 = 18, the minimum sum of a and B is 6 + 18 = 24, so the answer is: 24
If 2A + B = 5, ab = 6, find the square of 1.4A + the square of B, the square of 2.4a - the square of B
2a+b=5
Square on both sides
4a²+4ab+b²=25
4a²+b²=25-4ab=1
(2a-b)²
=4a²-4ab+b²
=1-24
=-23
Six out of seven cubic decimeters is 18 cubic decimeters
How many kg is 20% more than 75 kg
We need to work out the formula
It should be 21. 18 / 6 / 7 = 21
90kg 75X（1+20%）=90
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