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KiRa [710]
3 years ago
12

The square of a number added to 3 times the number is 28

Mathematics
2 answers:
Gre4nikov [31]3 years ago
7 0

3x28=84

Step-by-step explanation:

Naddika [18.5K]3 years ago
7 0

Answer: the number is 5

Step-by-step explanation:

Let the number be x , then the square of the number means x^{2} .

Therefore:

x^{2} +3=28

subtract 3 from both sides

x^{2} = 28 - 3

x^{2} =25

find the square root of both sides

x = 5

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