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2x2 = x2 - 2

Subtract x2 from both sides: x2 = -2

Take square roots: x = + or - i*sqrt(2) where i is the imaginary sqrt of -1.

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Q: Can someone solve for x. 2x2 equals x2-2?
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When x3 plus 3x2-2x plus 7 is divided by x plus 1 what is the remainder?

(x3 + 3x2 - 2x + 7)/(x + 1) = x2 + 2x - 4 + 11/(x + 1)(multiply x + 1 by x2, and subtract the product from the dividend)1. x2(x + 1) = x3 + x22. (x3 + 3x2 - 2x + 7) - (x3 + x2) = x3 + 3x2 - 2x + 7 - x3 - x2 = 2x2 - 2x + 7(multiply x + 1 by 2x, and subtract the product from 2x2 - 2x + 7)1. 2x(x + 1) = 2x2 + 2x2. (2x2 - 2x + 7) - (2x2 + 2x) = 2x2 - 2x + 7 - 2x2 - 2x = -4x + 7(multiply x + 1 by -4, and subtract the product from -4x + 7)1. -4(x + 1) = -4x - 42. -4x + 7 - (-4x - 4) = -4x + 7 + 4x + 4 = 11(remainder)


What is the square of 22?

The square of 22 is 484- 22 X22 ----- 44 44X ------ 484


What terms is the most likely next step in the sequence z6 y14 x22 w30?

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Find a function f such that gradient of f =F if F(x,y,z)=?

I tried to find f by integrating the partial derivatives, but since 1/r is multiplying the whole vector, I just took it out, I'm not sure if I can do that. Like this: ∂f∂x(x,y,z)=x ∂f∂y(x,y,z)=y ∂f∂z(x,y,z)=z thus f(x,y,z)=x22+g(y,z) f(x,y,z)=y22+h(x,z) f(x,y,z)=z22+k(x,y) for some functions g, h, and k, so if g=y22+z22, h=x22+z22 and k=x22+y22, the function f is: f(x,y,z)=1r(x22+y22+z22)=12r⋅r2=r2 Am I correct? If not, how can I solve this correctly, should I integrate x/r, y/r and z/r instead?

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When x3 plus 3x2-2x plus 7 is divided by x plus 1 what is the remainder?

(x3 + 3x2 - 2x + 7)/(x + 1) = x2 + 2x - 4 + 11/(x + 1)(multiply x + 1 by x2, and subtract the product from the dividend)1. x2(x + 1) = x3 + x22. (x3 + 3x2 - 2x + 7) - (x3 + x2) = x3 + 3x2 - 2x + 7 - x3 - x2 = 2x2 - 2x + 7(multiply x + 1 by 2x, and subtract the product from 2x2 - 2x + 7)1. 2x(x + 1) = 2x2 + 2x2. (2x2 - 2x + 7) - (2x2 + 2x) = 2x2 - 2x + 7 - 2x2 - 2x = -4x + 7(multiply x + 1 by -4, and subtract the product from -4x + 7)1. -4(x + 1) = -4x - 42. -4x + 7 - (-4x - 4) = -4x + 7 + 4x + 4 = 11(remainder)


What is most likely next z6 y14 x22 w30?

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How much is 22 carat gold woth?

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What is the square of 22?

The square of 22 is 484- 22 X22 ----- 44 44X ------ 484


How do you get 36 as a prime?

36 can never be a prime. You can find its prime factorization. 32 x22 =36


What terms is the most likely next step in the sequence z6 y14 x22 w30?

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726 square feet


Find a function f such that gradient of f =F if F(x,y,z)=?

I tried to find f by integrating the partial derivatives, but since 1/r is multiplying the whole vector, I just took it out, I'm not sure if I can do that. Like this: ∂f∂x(x,y,z)=x ∂f∂y(x,y,z)=y ∂f∂z(x,y,z)=z thus f(x,y,z)=x22+g(y,z) f(x,y,z)=y22+h(x,z) f(x,y,z)=z22+k(x,y) for some functions g, h, and k, so if g=y22+z22, h=x22+z22 and k=x22+y22, the function f is: f(x,y,z)=1r(x22+y22+z22)=12r⋅r2=r2 Am I correct? If not, how can I solve this correctly, should I integrate x/r, y/r and z/r instead?


How many square feet if a room is 16 x22?

16 ft x 22 ft = 352 ft2


How do you solve x2 equals cos x?

You can solve this to the accuracy of your liking by using Newton's method: xn+1 = xn - f(xn) / f'(xn) In this case, we'll say f(x) = x2 - cos(x) f'(x) would then be 2x + sin(x) Let's take a rough guess, and start with x0 = 0.5 x1 = 0.5 - (0.52 - cos(0.5)) / (2(0.5) + sin(0.5)) = 0.92420692729319751536 x2 = x1 - (x12 - cos(x1)) / (2x1 + sin(x1)) = 0.82910575599741780916 x3 = x2 - (x22 - cos(x2)) / (2x2 + sin(x2)) = 0.82414613172819520712 x4 = x3 - (x32 - cos(x3)) / (2x3 + sin(x3)) = 0.8241323124099124229 x5 = x4 - (x42 - cos(x4)) / (2x4 + sin(x4)) = 0.82413231230252242297 x6 = x5 - (x52 - cos(x5)) / (2x5 + sin(x5)) = 0.82413231230252242296 Now we can test our answer: 0.824132312302522422962 = 0.67919406818110235182 cos(0.82413231230252242296) = 0.67919406818110235183 So we're accurate to the nearest ten quintillionth.