Study guides

☆☆

Q: How do you complete the square 2x2 - 3x plus 1 equals 0?

Write your answer...

Submit

Still have questions?

Related questions

2x2 equals 5

15,000 to the third power that equals pi plus 12 would make it the square root of 7

2x2

3

2x2 + 11x + 15 = (x + 3)(2x + 5).

-7

x2 + x2 = 2x2

No.

8 - 2x2 = x + 22 - 7Combine like terms on the right side:8 - 2x2 = x + 15Subtract 8 from each side:-2x2 = x + 7Add 2x2 to each side:0 = 2x2 + x + 7

22 = 4

2x2=4x4=16

The discriminant is -199.

The discriminant is 25.

If: 2x2 = 4 Then: x = the square root of 2

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.

Reading this as: 4x2-6=2x2 This implies that: -6=-2x2 3=x2 x=sqrt(3) and x=-sqrt(3) So x can equal plus or minus the square root of 3

x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0

2x2+9 = -412x2 = -41-92x2 = -50x2 = -25x = -5Check: (2*-52)+9 = -41Sorry, you can't have -5 as square root of -25.x = 5i, where i is the imaginary square root of -1

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

2x2 + 10 = 9x 2x2 - 9x + 10 = 0 (x - 2)(2x - 5) = 0

x3 + 2x2 - 8x + 5 = 0 x(2x - 8) + 5 = 0

(-5 plus or minus the square root of 11) divided by 2 x = -0.8416876048223001 x = -4.1583123951777

The discriminant is 1.

2 times x times x equals 2x2

x = square root of 3.