Answer:
-2x+4
Step-by-step explanation:
2(x+2) - 4x
Distribute
2x+4 - 4x
Combine like terms
-2x+4
Answer:
(x-1)(x-2)
x=1, x=2
Step-by-step explanation:
Part c : consecutive interior angle
part e: alternate interior angle
part f : vertical angle
Answer:
3(x+2)(x+8)
Step-by-step explanation:
(x + 2)² - 10 = 0 (assuming it's equal to zero)
Expand the binomial: (x + y)² = x² + 2xy + y²
Thus, x² + 4x + 4 - 10 = 0
x² + 4x - 6 = 0

(by quadratic formula)



, since we're taking the positive solution.