Question

Find the mistakes and correct them.
1) 5y+2y+y-7y=0
2) (4x+y)²=2x²+y²

Answer 1

In the first one,

5y + 2y + y - 7y = y

But it is given as zero

In the second one,

(4x+y)² = 16x²+y²+ 8xy

These are the mistakes in the given question

Answer 2

Answer:

Step-by-step explanation:

given

1) 5y+2y+y-7y=0

2) (4x+y)²=2x²+y²

correction

1) 5y+2y+y-7y= y

2) (4x+y)²=16x²+y² +2[4x]y

                =16x^2 +y^2 +8xy