Find the value of p for which the expression 9x²+pxy+25y² is a perfect square. I need step by step explanation.
Answers
Answered by
0
Answer:
p = 2
Not a perfect square
Step-by-step explanation:
Using Identity :-
( x+y ) = x²+ 2xy +y²
(3×+y25 ) ² = 9x² + 2xy +25y²
9x² +pxy+25y² = 9x² + 2xy +25y
p = 2
Answered by
0
Answer:
The value of
k
=
1
Explanation:
The perfect square is
9
x
2
+
6
x
+
k
=
(
3
x
+
√
k
)
2
=
9
x
2
+
6
x
√
k
+
k
2
Comparing the
2
sides
6
√
k
=
6
√
k
=
1
k
=
1
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