5x2+9x-2=0
(5x +1)(x -2) =0
I need to use the quadratic formula to solve it
In google type :
quadratic equation online
When you see list of results click on :
Free Online Quadratic Equation Solver: Solve by Quadratic Formula
When page be open in rectangle type :
5 x ^ 2 + 9 x - 2 = 0
and click option :
solve it!
You will see solution step by step
5x + 1 = 0
5x +1-1 = 0-1
5 x = -1
5x/5 = -1/5
x = -1/5
x-2 = 0
x -2 + 2 = 0+ 2
x = 2
-1/5, 2
Thank You So muchhh!!!!!! :)
Since you are to use the quadratic formula ....
x = (-9 ± √(81 - 4(5)(-2))/10
= (-9 ± √121)/10
= (-9 ± 11)/10 = 2 or -1/5
y+1=x
-2x+3y=2