Answer: replace f(x) with y
.
y=x2+x−30
To find the roots of the equation, replace y
with 0
and solve.
0=x2+x−30
Rewrite the equation as x2+x−30=0
x2+x−30=0
Factor x2+x−30
using the AC method.
(x−5)(x+6)=0
Set x−5
equal to 0 and solve for x
x=5
Set x+6
equal to 0 and solve for x
x=−6
The solution is the result of x−5=0
and x+6=0
x=5,−6
Hope this helps!
