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Subjects>Math>Math & Arithmetic

What is x in 2x2 plus 9 equals -41?

Anonymous

∙ 15y ago

Updated: 12/15/2022

2x2+9 = -41

2x2 = -41-9

2x2 = -50

x2 = -25

x = -5

Check: (2*-52)+9 = -41

Sorry, you can't have -5 as square root of -25.

x = 5i, where i is the imaginary square root of -1

Wiki User

∙ 15y ago

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ALGEBRA- 1 plus 9 plus 25 equals 41?

1+9+25=35 not 41, this is a false statement

What is 18x sqr - 63x equals 81 divided by 9 equals?

It is 2x2 - 7x + 9

Solve 2x2 plus 4x-9 equals 0?

2*2+4x-9=0 4x=9-4 4x=5 x=5/4

What the x value of 2x square plus 3x plus 9 equals 0?

If 2x2 + 3x + 9 = 0 then x = -0.75 - 1.984i or -0.75 + 1.984i where i is the imaginary square root of -1.

What is the centre and its diameter of the circle 2x2 plus 2y2 plus 2x -6y -9 equals 0?

It works out that the centre of the circle is at (-0.5, 1.5) and its diameter is the square root of 28

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Related Questions

8A plus 9 equals 41 what does 8A equals?

A = 4

ALGEBRA- 1 plus 9 plus 25 equals 41?

1+9+25=35 not 41, this is a false statement

What is 18x sqr - 63x equals 81 divided by 9 equals?

It is 2x2 - 7x + 9

What is the factor of 2x2 plus 7x-9?

The factorisation is as follows: 2x2 + 7x - 9 = (x - 1)(2x + 9).

Solve 2x2 plus 4x-9 equals 0?

2*2+4x-9=0 4x=9-4 4x=5 x=5/4

What the x value of 2x square plus 3x plus 9 equals 0?

If 2x2 + 3x + 9 = 0 then x = -0.75 - 1.984i or -0.75 + 1.984i where i is the imaginary square root of -1.

Factor the trinomial 2x2 plus 17x - 9?

2x2 + 17x - 9 = 2x2 + 18x - x - 9 = 2x(x + 9) - 1(x + 9) = (2x - 1)(x + 9)

How do you solve 2xsquared-9x equals 18?

2x2 - 9x = 18 2x2 - 9x -18 = 0 (2x - 18)(x + 9) x= -9 and 9

How many real and imaginary solutions does the equation 2x2 -7x plus 9 equals x plus 1 have?

It has two equal solutions for x which are x = 2 and x = 2

What is the centre and its diameter of the circle 2x2 plus 2y2 plus 2x -6y -9 equals 0?

It works out that the centre of the circle is at (-0.5, 1.5) and its diameter is the square root of 28

How do you factorise 2x2 -9 plus 4?

2x2 - 9x + 4 = (2x - 1)(x - 4)

What is the discriminant of 2x2 plus 4x - 9?

The discriminant is 88.

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