23.3k views
2 votes
Help! what are the solutions of this quadratic equation? x^2+ 4=8x+5

Help! what are the solutions of this quadratic equation? x^2+ 4=8x+5-example-1
User Jemmons
by
5.5k points

2 Answers

5 votes

Answer:

Here

D is correct

Explanation:

........................................

Plzz....

Mark it as a brilliant answer

User Leon Van Der Veen
by
4.0k points
1 vote

Answer:

D

Explanation:

x^ 2+4=8x+5

Step 1: Subtract 8x+5 from both sides.

x^2+4−(8x+5)=8x+5−(8x+5)

x^2−8x−1=0

Step 2: Use quadratic formula with a=1, b=-8, c=-1. (attatched)

x=4+√17 or x=4−√17

Help! what are the solutions of this quadratic equation? x^2+ 4=8x+5-example-1
User Anticro
by
4.2k points