SOLUTION: xsquared-3x=4

Question 27348: xsquared-3x=4
Answer by Alwayscheerful(414) (Show Source): You can put this solution on YOUR website!
To solve a quadratic equation, it must be in , standard form.

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=25 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 4, -1. Here's your graph:

Hope this helps!
RELATED QUESTIONS
Xsquared-3x-4=0 (answered by hydromojo)

xsquared - 3x-4,... (answered by jsmallt9)

Xsquared+ 3x=... (answered by ReadingBoosters)

xsquared = negative 4 (answered by stanbon)

f(x)=xsquared+4 (answered by jim_thompson5910)

f(x)=xsquared+4 (answered by oscargut)

simplify... (answered by funmath)

ln (xsquared + 3x + 4) = ln... (answered by stanbon)

Solve the inequalities.... (answered by MathLover1)