xsquared+2x= 2x squared? yes or no? help!?

Question

again the problem is:

xsquared + x= what???

Answer 1

You cannot combine terms with different exponents when adding or subtracting. The only thing you could do is factor it:

x^2 + 2x = x(x + 2)

x^2 + x = x(x + 1)

Answer 2

x^2 + (x + 7)^2 = (2x + a million)^2 x^2 + (x + 7)(x + 7) = (2x + a million)(2x + a million) x^2 + x*x + 7*x + x*7 + 7*7 = 2x*2x + a million*2x + 2x*a million + a million*a million x^2 + x^2 + 7x + 7x + 40 9 = 4x^2 + 2x + 2x + a million 2x^2 - 4x^2 + 14x - 4x + 40 9 - a million = 0 -2x^2 + 10x + 40 8 = 0 (-2x^2 + 10x + 40 8)/-2 = 0/-2 x^2 - 5x - 24 = 0 x^2 + 3x - 8x - 24 = 0 (x^2 + 3x) - (8x + 24) = 0 x(x + 3) - 8(x + 3) = 0 (x + 3)(x - 8) = 0 x + 3 = 0 x = -3 x - 8 = 0 x = 8 ? x = -3 , 8

Answer 3

Your first equation's answer is "Yes"--Here's how:
X^2 + 2X = 2X^2 Divide both sides of the equation by X.........X + 2 = 2X Then combine like terms, and
X = 2 Final answer.

Your second equation lacks proper information to solve. "X"
is an unknown already, so the other side of the equation must
have some kind of value. The word "what" is also an unknown quantity.

Answer 4

x^2 + 2x is equal to nothing else but x^2 + 2x. It is NOT equal to x^2(or x^3 or x^4).

It's obvious but let's check.

x^2 + 2x = x^2

try x = 1,

3 = 1. FALSE.

try x = 2,

8 =4, FALSE.

The only case where it is true is when x = 0. In that case you get 0 = 0, which is true. For all other values of x it is false.

Answer 5

no X squared +2x is the simplest form in that equation

Answer 6

x^2 + 2x = x(x + 2)

x^2 + 2x does NOT = 2x^3

However, if it were (x^2)(2x), then it would = 2x^3

Answer 7

x squared plus 2x= 3xsquared
x squared plus x = 2x

Answer 8

x^2+2x=2x^3 not 2x^2

x^2 +x=x^3

Answer 9

That's as simple as you can get it, can't add unlike terms. BTW, the person below me is wrong, even if he/she is a teacher.

Answer 10

No....the answer is x to the third. You add the exponents!!