Solve for x: 7x2 = - 14x?

Answer 1

Add 14x from both sides:
7x^2+14x=0

Factor out 7x:
7x(x+2)=0
7x=0
x+2=0
x=0 and -2

Answer 2

7x^2=-14x
We can bring the -14x to the other side by adding 14x to each side.
7x^2+14x=0
Factor out a 7x
7x(x+2)=0
x=0, -2

Plug these numbers back in to check our answer.

7(0)^2=-14(0)
0=0 Yes.

7(-2)^2= -14(-2)
28=28 Yes.

I hope that this helps.

Answer 3

7*2 = -14x
or you can write as
-14x = 7*2
-14x = 14
get -14 on right hand side to find x

x = 14/-14
or
x = - 14/14
x = -1

if your problem is 7x^2 = -14x

then solve it as
7 X^2 = -14 X
divide both sides with 7X

7X^2/ 7X = -14X/7X

(7X^2 / 7X = X ; and -14X / 7X = -2)

then X = -2

Answer 4

how many x^2s can we've? from 3x we get no x^2s from -4x(x + 2) we get -4x^2 from -3(x^2 -x) we get -3x^2 so in total we've (-4 + -3)x^2 = -7x^2 how many 'x's can we've? from 3x we get 3x from -4x(x + 2) we get -8x from -3(x^2 - x) we get (-3)(-x) = 3x so in total we've (3 + -8 + 3)x = (6 - 8)x = -2x So the respond is A. -7x^2 - 2x IPOD: the unique cost grow to be greater effective than $a hundred and sixty, in fact 20% greater. to function 20% to $a hundred and sixty, i could multiply a hundred and sixty * a million.20 = a hundred and sixty + 32 = $192.

Answer 5

7x^2 = - 14x
Divide both side by 7 to simplify
x^2 = - 2x
Add 2x to both sides
(DON'T cancel the x's! You'll lose a root.)
x^2 + 2x = 0
Factor
x(x + 2) = 0
x = 0, -2

Answer 6

7x² + 14x = 0
7x(x + 2) = 0
7x = 0
x = -2
Solution: x = 0 or x = -2
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Answer 7

this is not a solution as 7*2 = 14 and you give -14x where x is going to be 1, except 14 is NOT equal to - 14

Answer 8

x=-1

Answer 9

7 x 2 = -14x
14 = -14x
14 / -14 = x
-1 = x
x = -1