SOLUTION: Can someone please assist me with detailed step by step instructions on how to complete this problem? Your assistance and time is greatly appreciated. Solve by completing the sq

Question 90251: Can someone please assist me with detailed step by step instructions on how to complete this problem? Your assistance and time is greatly appreciated.
Solve by completing the square.
x2 = 5x + 2

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Subtract 5x from both sides

Factor out 1

Take half of -5 to get -2.5 (ie )
Now square -2.5 to get 6.25 (ie )

Add this result (6.25) inside the parenthesis

Add 6.25(1) to the other side (remember we factored out a 1)

Now the left side is a complete square

Factor the left side

Multiply and combine like terms on the right side

Take the square root of both sides

Add 2.5 to both sides

So the expression breaks down to
or

So our answer is approximately
or

Here is visual proof

graph of

When we use the root finder feature on a calculator, we would find that the x-intercepts are and , so this verifies our answer.

RELATED QUESTIONS
Could someone please help me with step by step instructions on how to graph this... (answered by Alan3354)

Can anyone please help with this rational exponents problem? Simplify using the rules... (answered by josgarithmetic)

-3x+1=5-2x I know the answer is -4 because it is in the back of the book. can you... (answered by ankor@dixie-net.com)

Hi, Another tutor tried helping me with the problem below but I still don't understand (answered by jim_thompson5910,swincher4391)

i need help on this problem can someone please show me step by step " find the midpoint... (answered by Alan3354)

Hi, Can someone please show me step by step on how to solve this problem?... (answered by mananth)

Can someone show me how to do this problem with step by step instructions. Thank you The (answered by rapaljer,Earlsdon)

In need of assistance please. I am unsure if the following problem is able to be... (answered by josmiceli)

Please explain to me step by step how to solve this problem. If i can get some assistance (answered by ankor@dixie-net.com)