You can put this solution on YOUR website! Can you please solve the equation by completing the square: -10x = 3x² - 2
:
Re-write the equation in the form
3x^2 + 10x + ___ = 2
The coefficient of x^2 has to be 1, divide by 3, results:
x^2 + x + ____ =
:
Find the term which completes the square; (10/6)^2 = (100/36) reduces to
x^2 + x + = +
:
x^2 + x + = +
:
x^2 + x + =
:
(x + )^2 =
:
x + = +/-
:
Two solutions
x = +
We can write it:
x =
and
x =
