Calculus

In algebra, x can have any value as the letter is used to represent any number that is unknown until solved.

e.g. 2x=4

x=2

In Roman Numerals, X is 10.

Shut down your computer.

Slope = -1

x2 + 7x - 56 cannot be factorised.

The answer would be no solution. x+1=x+2. Subtract 1 from both sides x=x+1. Subtract x from both sides. 1 does not = 0

It equals 0

As the equation plainly tells us, "Wye is equal to two eks plus four".

The value of 'y' completely depends on the value of 'x'. Whenever 'x' changes,

the value of (2x + 4) changes instantly.

If done to both sides of an equation you can do just about anything

1/5(5X = 20)1/5

X = 4

-------------works here!

8x - 23= 3x + 2

+23 +23

8x=3x + 25

-3x -3x

5x=25

x=5

the answer is X=5

Yes. It is scientific notation. If written in standard form it would have an 11 followed by 212 zeros.

50003

Fourth root of pi, or 3.141592654 0.25 = 1.33133

I know the answer

*is arctan(x), but how about breaking it into partial fractions by doing 1/(1-ix)(1+ix)?

x2 - 8x - 40 = 0

∴ x2 - 8x = 40

∴ x2 - 8x + 16 = 56

∴ (x - 4)2 = 56

∴ x - 4 = ± 561/2

∴ x = 4 ± 561/2

∴ x = 4 ± 2 × 141/2

∴ x ≈ {11.4833, -3.4833}

100

14400

Prime numbers, like 7, have no proper factors. The only factors are 1 and 7.

360˚

How do you not know this?

y = 3.

y^3 - y = y(y^2-1) = y(y+1)(y-1) = 3*4*2 = 24.

I apologize, for the person who first answered this question is only aware of his own skills at math, and is unaware that not everyone understands very advanced math, but he is correct, that is the answer.

The two rational solutions are (0,0,0) and (1,1,1). There are no other real solutions.

0.62*0.75 = 0.465

The solution is:- x = 0 and y = 5

9

y=4x+35

slope=4

x-intercept = (-35/4,0)

y-intercept = (0,35)