SOLUTION: x2 - 3x =4
Algebra.Com
Question 117858: x2 - 3x =4
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation
Subtract 4 from both sides
Factor the left side (note: if you need help with factoring, check out this solver)
Now set each factor equal to zero:
or
or Now solve for x in each case
So our answer is
or
Notice if we graph we can see that the roots are and . So this visually verifies our answer.
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