Answer:
B
Step-by-step explanation:
-x - 1 = x^2 + x
x^2 + 2x + 1 = 0
(x+1)(x+1) = 0
x = -1 (double soution)
y = 1-1 =
y =0
(-1,0) = double solution
Just subtract them like normal number.
Example: π/2 - π/4
Just handle it like normal number:
π/2 - π/4 = 2π/4 - π/4 = (2π - π )/ 4 = π/4
Hope this helps.
Step-by-step explanation:
the answer is the image above
Answer:
a
Step-by-step explanation:
Quadratic expressions use variables and they are a branch of math
