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3 years ago

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The cost of Samantha's 15th birthday party depends on the number guest. The hall charges $250 for the use of the hall plus $12 p

er guest. Write an equation for the total cost (y) for x number of guest.
If Samantha has 25 guest what is her total cost?

1 answer:

Scorpion4ik [409]3 years ago

3 0

Answer:

Equation: y=x(12)+250

Total cost: $550

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${a}^{3} + {b}^{3} = (a + b)( {a}^{2 } - ab + {b}^{2} )$

EXPLANATION

To find the expression that is equivalent to
${a}^{3} + {b}^{3}$
we must first expand
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Then we rearrange to find the required expression.

So let's get started.

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We expand the parenthesis on the right hand side to get,

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Let us group the cubed terms on the right hand side to get,

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2}b + 3a {b}^{2}$

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We make the cubed terms the subject,

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We factor to get,

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We expand the bracket on the left hand side to get,

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We finally simplify to get,

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Read 2 more answers

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