SOLUTION: x2+7x+10=0 I guess

Question 112101: x2+7x+10=0 I guess
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Let's use the quadratic formula to solve for x:

Starting with the general quadratic

the general solution using the quadratic equation is:

So lets solve ( notice , , and )

Plug in a=1, b=7, and c=10

Square 7 to get 49

Multiply to get

Combine like terms in the radicand (everything under the square root)

Simplify the square root (note: If you need help with simplifying the square root, check out this solver)

Multiply 2 and 1 to get 2

So now the expression breaks down into two parts

or

Lets look at the first part:

Add the terms in the numerator
Divide

So one answer is

Now lets look at the second part:

Subtract the terms in the numerator
Divide

So another answer is

So our solutions are:
or

Notice when we graph , we get:

and we can see that the roots are and . This verifies our answer

RELATED QUESTIONS
X2+7X+10=0 (answered by rfer)

x2+7x+10=0 (answered by onlinetutor365.com)

x2-7x+10=0 (answered by sofiyac)

x2 ((squared)) + 7x+10 =... (answered by solver91311)

x2-7x-120=0 (answered by scott8148)

x2 + 7x - 59 =... (answered by checkley77)

x2+7x+12=0 (answered by linh117,shree840)

x2-7x-18=0 (answered by josgarithmetic)

x2+7x+10= (answered by solver91311)