Question

(4x-y + 2x)² expand please help​

Answer 1

Answer:

16x²-y²+4x²

20x²-y²

20x²=y²

20x=y

y=20x

Answer 2

Answer:

16x²+y²+4x²-8xy-4xy+16x²

Step-by-step explanation:

(4x-y+2x) ²

By using identity: (a+b+c)²

(4x)² + (-y)² + (2x)²+2×(4x)×(-y) + 2x(-y)×(2x) + 2×(2x)×(4x)

16x²+y²+4x²-8xy-4xy+16x²