Which is a solution of x2 – x – StartFraction 3 Over 4 EndFraction = 0?

x = - , x =

Step-by-step explanation:

Given

x² - x - = 0 ( add to both sides )

x² - x =

Solve using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2( - )x + = +

(x - )² = 1 ( take the square root of both sides )

x - = ± 1 ( add to both sides )

x = ± 1

Thus

x = - 1 = -

x = + 1 =

a

step-by-step explanation:

rurbrbrjrnrbjr

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.