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Katena32 [7]
3 years ago
14

Use the formula for the difference of cubes to show that 125 - 27 = 98

Mathematics
1 answer:
IrinaVladis [17]3 years ago
3 0

The formula is

a^3 - b^2 = (a - b)(a^2 + ab + b^2)  so plugging in  the given values:-

a = cube root of 125 = 5 and b = cube root of 27 = 3 ,  we get:-

125 - 27 = (5 - 3)(5^2 + 5*3 + 3^2)

= 2 * 49

= 98   answer

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4 0
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A model of a​ tractor-trailer is shaped like a rectangular prism and has a width of 2 in., a length of 10 in., and a height of 4
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6 0
3 years ago
Beto is selling raffle tickets to raise money for his school band. The tickets cost $12 each. Beto's goal is to make at least $2
Kamila [148]

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4 0
3 years ago
Please help with math problem?
Hoochie [10]

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5 0
2 years ago
Marcia has $84 less than three times as much as sue. together they have $132. how much money does marcia have?
Brut [27]
Let x = sue
and then let 3x-84 = marcia
therefore
(x)+(3x-84)=132
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for marcia
3x-84
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162-84
78

therefore Marcia has 78$.
5 0
3 years ago
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