Posted by Krystal on .
How would you solve 3x^2+8x91=0 and 9r^2+4r+2=0 using the quadratic formula?

algebra 2 
Steve,
the same way you solve any quadratic. The first is:
x = [8±√(8^24(3)(91))]/(2*3)
= (8±√1156)/6
= (8±34)/6
= 7,13/3
solve the other in like wise.