a²=-16×2+16÷2+4
a value
Answers
Answered by
3
Answer:
There are really two unknowns, the sum and the product of
a
and
b
,
so let
x
=
a
+
b
and
y
=
a
b
.
x
2
=
(
a
+
b
)
2
=
a
2
+
2
a
b
+
b
2
=
2
y
+
4
x
3
=
(
a
+
b
)
3
=
a
3
+
b
3
+
3
a
b
(
a
+
b
)
=
8
+
3
x
y
Two equations in two unknowns,
2
y
=
x
2
−
4
2
x
3
=
16
+
3
x
(
2
y
)
=
16
+
3
x
(
x
2
−
4
)
x
3
−
12
x
+
16
=
0
Attachments:
Similar questions
Math,
9 days ago
Math,
9 days ago
Biology,
9 days ago
Social Sciences,
18 days ago
Math,
9 months ago
Social Sciences,
9 months ago