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il63 [147K]
2 years ago
10

PLEASE HELP I WILL MAKE BRAINEST UGH

Mathematics
1 answer:
Alenkasestr [34]2 years ago
4 0
It's the first one---------------------
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X²-4x-45<br> I need to factor this equation
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Answer:

= (x + 5)(x - 9)

Step-by-step explanation:

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3 years ago
1) x-1+5<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx-1%5C%5C%7D" id="TexFormula1" title="\sqrt{x-1\\}" alt="\sqrt{x-1\\}" align
TEA [102]

Answer:

See explanation below

Step-by-step explanation:

Find the value of x in each of the following

1) x-1+5√x-1+3=0

5√x-1 = -x -2

Square both sides

25(x-1) = (-x-2)^2

25(x-1) = x^2+4x + 4

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x^2 - 21x + 29 = 0

x = 21±√21²-4(29)/2

x = 21±√441-116/2

x = 21±√325/2

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x = 21+18.03/2 and 21-18.03/2

x = 19.515 and 1.485

4)  x^4-64=0

x^4 = 64

x = \sqrt[4]{64}

x = 2.83

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Match each label to the correct location.
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If only + numbers are acceptable, then the numbers divisible by 810 are represented by {810n}, where n = {0, 1, 2, 3, ... }
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0.6 is your answer if you need explanation than comment me

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