Question

Solve the quadratic equation 2x2 − 9x = 35 for x

Answer 1

Answer:

Step-by-step explanation:

66666666666

Answer 2

Answer:

$x=7$ or $x=-5/2$

Step-by-step explanation:

The given equation in standard form can be written as

$2x^{2} -9x-35=0$

comparing with the standard equation $ax^{2} +bx+c=0$ ,

we observe that

$a=2$  ,  $b=-9$  ,  $c=-35$

putting the values of a, b and c in the quardatic formula

x=(-b±$\sqrt{b^{2}-4ac }$)÷2a

x=(-(-9)±$\sqrt{(-9)^{2}-4(2)(-35) }$)÷2(2)

x=(9±$\sqrt{81+280}$)÷4

x=(9±$\sqrt{361}$)÷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