This is the solution of the equation, where a=1, b=-5, c=7
So the discriminant is :
b^2-4ac=25-4*7= -3
The square root of -3 is non-real, this both solutions are non-real.
13 Sammy incorrectly solves the equation 1/3(x+9)=8 which step shows an error based on the equation only from the previous step?
1/3x+9=91/3x=8+91/3x=17x=17÷3x= 5 2/3
1 answer:
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This is the solution of the equation, where a=1, b=-5, c=7
So the discriminant is :
b^2-4ac=25-4*7= -3
The square root of -3 is non-real, this both solutions are non-real.