Answer:
2x + y
Step-by-step explanation:
x² + xy - y² = 4
→ Remember the rule, bring the power down then minus 1
2x + y
Answer:
200
Step-by-step explanation:
12km in 240min = 0.05 km per minute
10÷0.05 =200
should it be 9 and 9. I hope this can help in some way! .3.
Answer:
3 5 -5 2 and 7 are the numbers