Find the squares of (y+3)
1 answer:
Answer:
Since we know that
(a+b)
2
=a
2
+2ab+b
2
(a−b)
2
=a
2
−2ab+b
2
Now,
(i)
(x+3y)
2
=x
2
+2×x×3y+(3y)
2
=x
2
+6xy+9y
2
(ii)
(2x−5y)
2
=(2x)
2
−2×2x×5y+(5y)
2
=4x
2
−20xy+25y
2
(iii)
(a+
5a
1
)
2
=a
2
+2×a×
2a
1
+(
2a
1
)
2
=a
2
+1+
4a
2
1
(iv)
(2a−1a)=(1a)
2
(1a)
2
=1a
2
Answer
You might be interested in
The answer should be 18.6, just substitute x for 2 and y for 3 and solve using PEMDAS :)
Answer:
14.25 - d
Step-by-step explanation:
Answer:
i Dont know
Step-by-step explanation:
i
d
o
n
t
k
n
o
w
Answer: 8 tons
Step-by-step explanation:
The word median means middle.
The median is 7.0 because it’s in the middle of the following numbers.
