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What is x squared equals 9 squared - 2x squared?

Anonymous

∙ 13y ago

Updated: 12/16/2022

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More answers

x2 = 92 - 2x2

x2 + 2x2 = 92

3x2 = 81

x2 = 81/3

x2 = 27

x = 5.196 (to 3 decimal places only)

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∙ 13y ago

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Q: What is x squared equals 9 squared - 2x squared?

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Is -2x squared plus 2x plus 1 equals 9 a quadratic equation?

Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.

How do you factor x squared -2x-3 equals 0?

x squared -2x-3 equals 0 is the same as (x + 1)(x - 3) = 0

What is the answer to 2x squared -2x -40 equals 0 is it x equals 5 and x equals -4?

Yes it is and well done.

How do you solve 2X plus 5 squared equals 7?

2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9

10x squared - 17 x equals 63?

(2x - 7)(5x + 9) ie x = 3.5 or -1.8

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Related Questions

Is -2x squared plus 2x plus 1 equals 9 a quadratic equation?

Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.

How do you factor x squared -2x-3 equals 0?

x squared -2x-3 equals 0 is the same as (x + 1)(x - 3) = 0

What is the answer to 2x squared -2x -40 equals 0 is it x equals 5 and x equals -4?

Yes it is and well done.

Does x times x equal 2x?

No, x + x equals 2x. x times x equals x2. (x times x equals x squared.)

How do you solve 2X plus 5 squared equals 7?

2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9

What is 2X squared if x equals 2?

48

10x squared - 17 x equals 63?

(2x - 7)(5x + 9) ie x = 3.5 or -1.8

2x equals -x plus 9?

2x = -x +9

What is 2x-9 equals 9?

It is an algebraic expression involving x. Of do you mean 'what is x if 2x - 9 equals 9?' 2x - 9 = 9 ⇒ 2x - 9 + 9 = 9 + 9 ⇒ 2x = 18 ⇒ 2x ÷ 2 = 18 ÷ 2 ⇒ x = 9

If x equals A squared what is 2x-4?

6

If 5xequals 9plus 2x then x equals?

If 5 x equals 9 plus 2x then x equals?

What does cos squared x - Sin squared x equal?

2 x cosine squared x -1 which also equals cos (2x)

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