Question

Solve using Quadratic Formula:
2x^-2-x^-1-1=O

Answer 1

\[x^{-2} =\frac{1}{x^2}\]

Answer 2

can u show me ur solution?

Answer 3

can you please check your equation, is it is -2-x^-1???

Answer 4

|dw:1316399903401:dw

Answer 5

??

Answer 6

\[2x^-2-x^ -1-1=O\]

Answer 7

the exponents are negative

Answer 8

so it will be:

2/x^2 - 1/x - 1 = 0

2/x^2 - 1/x = 1 ----> multiply both side by x^2

2 - x = x^2

x^2 + x - 2 = 0

(x+2)(x-1) = 0

x = -2
x = 1

:-)

Answer 9

just make the negative exponential variable upside down( take the reciprocal) to make the exponent positive.

:-)

Answer 10

basta pag may hindi ka maintindihan ask ka lng.
:-)

Answer 11

ok, thanks:)