Answer:
19
Step-by-step explanation:
Answer:
y= -3
(0,-3)
Step-by-step explanation:
x
=
−
7
or
x
=
−
8
Explanation:
Find a pair of factors of
56
with sum
15
.
The pair
7
,
8
works in that
7
⋅
8
=
56
and
7
+
8
=
15
Hence:
0
=
x
2
+
15
x
+
56
=
(
x
+
7
)
(
x
+
8
)
So:
x
=
−
7
or
x
=
−
8
Alternative method
2 and 3 are the answers i'm pretty sure.
A sum is addition. This problem is division... But 4/3= 1.33333.