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Lerok [7]
3 years ago
11

Plz help due tomorrow

Mathematics
2 answers:
SVEN [57.7K]3 years ago
7 0
Ahahabevvaagahananana
ikadub [295]3 years ago
6 0

Answer:

  • 52=8n +4
  • 4 =52-8n

n = 6

52 = 8 (6) + 4

if u compute it the answer would be 52, that's why it's correct.

4 = 52-8(6)

if u compute it the answer would be 4, that's why it's correct.

the others is incorrect. PLS MARK ME THE BRAINLIEST.

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Nikolay [14]

Answer:

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Step-by-step explanation:

The given Equation is

3x^{2} + 2 = 11-x^{2}   .................(i)

Adding ( x^{2} -11 ) on both sides of  (i)

3x^{2}+2+x^{2}-11 = 11-x^{2}+x^{2}-11

solving and cancelling out the terms will give

⇒ 4x^{2} -9=0  

⇒ (2x)^{2} -(3)^{2} = 0     ...................(ii)

Now we Know that

(a)^{2} -(b)^{2} = (a-b)(a+b)  

Applying this on equation (ii)

(2x-3)(2x+3)=0

This will lead us to

Either 2x-3 =0    .......(iii)        or     2x+3=0   ..........(iv)

Solving equation (iii) for value of x

2x - 3 =0

adding 3 on both sides

2x -3 +3 = 0+ 3

2x = 3

Cross multiplying gives

x=\frac{3}{2}

Solving equation (iv) for value of x

2x + 3 =0

adding -3 on both sides

2x -3 +3 = 0- 3

2x = -3

Cross multiplying gives

x=\frac{-3}{2}

so x=\frac{3}{2} and x=\frac{-3}{2}

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Step-by-step explanation:

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Step-by-step explanation:

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