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3 years ago

HELPPPPPPPPPPPPPPPPPPP!!!

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

8 0

Answer:

x=-4

Step-by-step explanation:

(x+4) ^ (1/3) + (2x+8) ^ (1/3) = 0

Subtract (x+4) ^ (1/3) from each side

(x+4) ^ (1/3) - (x+4) ^ (1/3)+ (2x+8) ^ (1/3) = -(x+4) ^ (1/3)

(2x+8) ^ (1/3) = -(x+4) ^ (1/3)

Cube each side

(2x+8) ^ (1/3) ^3= -(x+4) ^ (1/3)^3

2x+8 = -(x+4)

Distribute the negative sign

2x+8 = -x -4

Add x to each side

2x+8 +x =-x+x-4

3x+8 = -4

Subtract 8 from each side

3x+8-8 =-4-8

3x =-12

Divide by 3

3x/3 = -12/3

x = -4

agasfer [191]3 years ago

4 0

Answer:

x=-4

Step-by-step explanation:

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Svetradugi [14.3K]

Answer:

$PS=2\sqrt{6}$

Step-by-step explanation:

we are given triangle as

we know that

triangle PRS and triangle PQS are similar

so, the ratios of their sides must be equal

we get

$\frac{RS}{PS}=\frac{PS}{QS}$

now, we are given

RS=4

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we can plug it

$\frac{4}{PS}=\frac{PS}{6}$

$PS^2=6\times 4$

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now, we can solve for PS

$PS=2\sqrt{6}$

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kipiarov [429]

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