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Ronch [10]
3 years ago
6

Which equation is true?

Mathematics
2 answers:
ch4aika [34]3 years ago
6 0

Answer : 9x^2 - 25 = (3x - 5)(3x + 5)

(1) 9x^2 - 25 = (3x - 5)(3x - 5)

Use FOIL method to mulitply (3x – 5)(3x – 5)

(3x - 5)(3x - 5)  = 9x^2 - 30x + 25

(2) 9x^2 - 25 = (3x - 5)(3x + 5)

Use FOIL method to mulitply (3x - 5)(3x + 5)

(3x - 5)(3x - 5)  = 9x^2 - 15x + 15x - 25 = 9x^2 - 25

(3) 9x^2 - 25 = -(3x + 5)(3x + 5)

Use FOIL method to mulitply -(3x + 5)(3x + 5)

-(3x + 5)(3x + 5)  = -(9x^2 + 30x + 25) = -9x^2 -30x -25

(4) 9x^2 - 25 = -(3x + 5)(3x - 5)

Use FOIL method to mulitply -(3x + 5)(3x - 5)

-(3x + 5)(3x - 5)  = -(9x^2 - 25) = -9x^2 + 25

So equation 2 is true

padilas [110]3 years ago
4 0
Hello,

Answer B


But this is not an equation!!!!! (only an expression)
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Slav-nsk [51]

The length of AD is 32 feet

Step-by-step explanation:

An architect is sketching a blueprint of a patio for a new fence

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A mid-point divides a line segments into two equal parts in length

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∴ AC = CD

∵ B is the mid point of AC

∴ AB = BC

∵ BC = 8 feet

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∴ AD = 16 + 16 = 32

The length of AD is 32 feet

Learn more:

You can learn more about the mid-point in brainly.com/question/3269852

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lubasha [3.4K]
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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h(x) = ∛(12 - 5x)

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