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3 years ago

If x2 - 4 = 45, then x could be equal to 9 3 5 -7 -4

1 answer:

5 0

Transpose the constant on the left hand side of the equation to the right side. The equation becomes x² = 45 + 4,
x² = 49
x = sqrt(49)
x = 7 and x = -7
Only -7 is on the choices. Thus, the answer is x = -7.

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Answer:

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2 years ago

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Alik [6]

Answer:

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Step-by-step explanation:

this is how i got it:

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3 years ago

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Step-by-step explanation:

See attached worksheet.

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2 years ago

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katrin2010 [14]

Do the daaaaaMn work yourself
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