Question

2x^2 – 9x = 35
Solve the quadratic equation using the quadratic formula.

Answer 1

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