49ab square - 81 c square a
Answers
Answered by
1
Answer:
You may notice that
49
=
7
2
and
81
=
9
2
are both squares.
Explanation:
So
49
a
2
=
(
7
a
)
2
and
81
b
2
=
(
9
b
)
2
are also squares, and then we can use the special product of the form:
x
2
−
y
2
=
(
x
+
y
)
(
x
−
y
)
=
(
7
a
+
9
b
)
(
7
a
−
9
b
)
Similar questions
Chemistry,
1 month ago
Political Science,
2 months ago
English,
2 months ago
English,
8 months ago
English,
8 months ago