Question

2ײ+7×+9=0 quadratic equation

Answer 1

Answer:

hope,it will help you...

Step-by-step explanation:

a=2

b=7

c=9

now plunge them into formula

x=[−b±{√b2−4ac}]/2a

→x=[−7±{√7 square−4(2)(9)}]/2(2)

→x=[-7±{√49-72}]/4

→x=[-7±(√49-72)]/4

→x=[-7±(√-23)]/4