Question

Solve the equation using the quadratic formula -x^2+27=6x

Answer 1

`-x^(2)+27=6x\\-x^(2)-6x+27=0`

Quadratic formula

`\frac{-(-1)±\sqrt{6^(2)-4(-1)(27)}}{2(1)}`

`(1±√(36+108))/(2)`

`(1±√(144))/(2)`

`(1±12)/(2)`

`(1+12)/(2)=(13)/(2)=6.5\\\\(1-12)/(2)=(11)/(2)=-5.5`

6.5 or -5.5

Answer 2

The answer is:

X= -9, 3