Answer:
Step-by-step explanation:
The given equation in standard form can be written as
comparing with the standard equation ,
we observe that
putting the values of a, b and c in the quardatic formula
x=(-b±)÷2a
x=(-(-9)±)÷2(2)
x=(9±)÷4
x=(9±)÷4
x=(9±19)÷4
x=(9+19)÷4 or x=(9-19)÷4
x=28÷4 or x=-10÷4
x=7 or x=-5÷2
