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Ksivusya [100]
3 years ago
9

Which model represents the factors of 4x²-9?

Mathematics
1 answer:
NeX [460]3 years ago
6 0

Step-by-step explanation:

(

2

x

)

2

−

3

2

=

(

2

x

−

3

)

(

2

x

+

3

)

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Answer:

(x+2)(x+8)

Step-by-step explanation:

1.)find factors of the third expression(16)that will add up to give the second expression(10)

16=2×8. 10=2+8

2.)substitute those factors inplace of 10

{x}^{2}  + 10x + 16

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3.)factorise using grouping method

( {x}^{2}  + 2x) + (8x + 16)

x(x + 2) + 8(x + 2)

= (x + 2)(x + 8)

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Step-by-step explanation:

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The cost (in dollars) of a custom made sweatshirt is represented by 3.5n +29.99, where n is the number of different colors in th
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Answer:

52.5n+449.85

Step-by-step explanation:

The cost is given for <em>1 sweatshirt</em>. To find the cost of 15 sweatshirts, we need to multiply the expression by 15. Let's do this:

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This is the expression that represents the cost of 15 sweatshirts.

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