SOLUTION: How many real and imaginary soultions does the equation 4x²+13x+7=0 have? How many real and imaginary soultions does the equation 2x²-7x+9=x+1 have?

Algebra ->  Real-numbers -> SOLUTION: How many real and imaginary soultions does the equation 4x²+13x+7=0 have? How many real and imaginary soultions does the equation 2x²-7x+9=x+1 have?      Log On


   

Question 173225: How many real and imaginary soultions does the equation 4x²+13x+7=0 have?

How many real and imaginary soultions does the equation 2x²-7x+9=x+1 have?
Answer by sofiyacherni(99) About Me  (Show Source):
You can put this solution on YOUR website!
How many real and imaginary soultions does the equation 4x%5E2%2B13x%2B7=0 have?
%284x%2B7%29%28x%2B1%29=0
4x%2B7=0
4x=-7
x=-7%2F4 that's one solution
x%2B1=0
x=-1 that's second solution
so two total
How many real and imaginary soultions does the equation 2x%5E2-7x%2B9=x%2B1 have?
2x%5E2-7x-x%2B9-1=0
2x%5E2-8x%2B8=0
2%28x%5E2-4x%2B4%29=0
2%28x-2%29%28x-2%29=0
x-2=0
x=2 the other solution will be the same, so it only has one solution.