Answer:

Step-by-step explanation:
5x 2 - 2x
Answer = C
Solution -
Rotating the triangle 90° counterclockwise will take the triangle to 3rd quadrant and then further moving it 16 steps right will take it to 4th quadrant and followed by 16 steps upward will take it to the desired position which is in 1st quadrant.
*Note - Follow the image attached herewith.
Answer:
(5x + 7y)² = 25x² + 70xy + 49y²
Step-by-step explanation:
(5x + 7y)² = 25x² + 70xy + 49y²
Because,
(5x + b)² = (5x)² + 2(5x)(b) + b²
2(5x)(b) = 70xy
b = 7y
b² = (7y)² = 49y²
Hey there!
It seems as if you found the answer to your problem? If you need any help though, just let me know!
Let me know if you'd like me to explain how I got this answer!