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3 years ago

Write an expression that is equivalent to (x-5)²

Mathematics

1 answer:

denis23 [38]3 years ago

3 0

Answer:

x²-10x+25

Step-by-step explanation:

expand the expression

(x-5)²

(x-5)(x-5) distribute

x²-5x-5x+25

combine like terms

x²-10x+25

if you get x^2-25 then you're only squaring the x and 5, you have to square the whole equation (x-5)(x-5) is doing (x-5)^2. for example, if you just had (5)^2 you would take the whole "equation" which is 5 and times that equation by itself.

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During a football game a concert in stenciled family three hamburgers and two white dogs for a total of $13 and another family t

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Answer:

Price of hamburgers = $2

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Step-by-step explanation:

Let

The number price of hamburgers be x

The number price of white-dogs be y

Then the first family buys 3 hamburgers and 2 white -dogs for $13

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subracting (3) from (4)

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(-)

-------------------------

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$y =\frac{22}{11}$

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Now substituting the value of y in eq(1),

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3x + 4 = 13

3x = 13-4

3x = 9

x = $\frac{9}{3}$

x =3

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If $10,500 is borrowed for 5 years at an annual simple interest rate of 1.73%, how much interest will be paid if the entire loan

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Answer:

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Write an expression that is equivalent to (x-5)²​

Write an expression that is equivalent to (x-5)²