Question

Solve: 0 = 4x2 − 8x − 5.

x = −1 over 2, x = 5 over 2

x = −1 over 2, x = −negative 5 over 2

x = 1 over 2, x = −negative 5 over 2

x = 1 over 2, x = 5 over 2

Answer 1

a

Answer 2

D

Answer 3

http://openstudy.com/study#/updates/4f9c4405e4b000ae9ed159c9
4x^2-8x-5=0
4x^2+2x-10x-5=0
2x(2x+1)-5(2x+1)=0
(2x+1)(2x-5)=0
2x+1=0 so x=-1/2
2x-5=0 so x = 5/2

Answer 4

x=-1/2,5/2

Answer 5

c;

Answer 6

Thank you guys and thank you Elsa for the explanation <3