The answer is c or the answer is A
Answer:
and
Step-by-step explanation:
We have to solve the given equation - 2x² + 3x - 9 = 0
To solve the equation given above we have to factorize the left-hand side of the equation.
But it can not be factorized. So, use the Sridhar Achaya formula.
Therefore, and
So, and {Where }
Therefore, the solutions are imaginary numbers. (Answer)
Note: The Sridhar Acharya Formula gives if ax² + bx + c = 0, then the roots of the equation are and .
Point slope form is y - y1 = m(x - x1)
so if the slope is m= 2 and (x1,y1) = (1,3) is a point on the line the equation is:-
y - 3 = 2(x - 1)
X² - 6x - 27 = 0
x = <u>-(-6) +/- √((-6)² - 4(1)(-27))</u>
2(1)
x = <u>6 +/- √(36 + 108)</u>
2
x = <u>6 +/- √(144)</u>
2
x = <u>6 +/- 12</u>
2
x = 3 <u>+</u> 6
x = 3 + 6 x = 3 - 6
x = 9 x = -3