The equation is
.
In this trinomial,
. Since c and b are positive signs, you need to find two positive factors with a sum of 17 and a product of 60.

(Substitute
)
(Apply distributive property:
)
(Apply distributive property:
)
(Apply distributive property:
)
Use the principle of zeroproducts, which says, if ab=0, either a , b or both must be equal to zero.
\
(Subtract 5 from each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
. (Subtract:
)
(Divide each side by 4)
. (Cancel common terms)

(Subtract 3 from each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
. (Subtract:
)
The solution of
is
.