Question

Solve the quadratic equation 8x2 + 6x = 5 using the quadratic formula.

Question 19 options:

A)

x = –5∕4, x = 1∕2

B)

x = –5∕4, x = –1∕2

C)

x = –1∕2, x = 5∕4

D)

x = 1∕2, x = 5∕4

Answer 1

Answer: A

Explanation:

`8x^2 +6x=5\\\\8x^2 +6x-5=0\\\\x=(-6 \pm √(6^2 -4(8)(-5)))/(2(8))\\\\x=(-6 \pm 14)/(16)\\\\x=-(5)/(4), (1)/(2)`