Equations
• x² + y = 0 ... (1)
• x² - 4x - y = 0 ... (2)
Answer -> (x, y) = (2, -4)
Step-by-step solution:
From equation 2,
-> y = x² - 4x ... (3)
• Substitute y into equation 1
-> x² + (x² - 4x) = 0
-> 2x² - 4x = 0
-> 2x² = 4x
-> x²/x = 4/2
-> x = 2
• Put x = 2 in equation 3
-> y = (2)² - 4(2)
-> y = 4 - 8
-> y = -4
Answer:
sorry i dont know
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I just did this lol
You have ti distribute the 5n into the brackets.
so then youll have 15n^2 + 40n.
Answer:
i dont know
Step-by-step explanation:
