Answer:
y = x³ + 2x² - 13x + 10
Step-by-step explanation:
Given
y = (x + 5)(x - 1)(x - 2) ← expand (x - 1)(x - 2)
= (x + 5)(x² - 2x - x + 2)
= (x + 5)(x² - 3x + 2)
Multiply each term in the second factor by each term in the first factor
= x(x² - 3x + 2) + 5(x² - 3x + 2) ← distribute both parenthesis
= x³ - 3x² + 2x + 5x² - 15x + 10 ← collect like terms
y = x³ + 2x² - 13x + 10
Answer:
A triangle without any congruent sides, or all sides ae different, is called a scalene triangle. I don't know what you mean by sketch one out.
Answer:
x = 50
Step-by-step explanation:
55 degrees + (2x + 25) degrees = 180 degrees
55 + 25 + 2x = 180
80 + 2x = 180
2x = 100
x = 50
Hello, I believe the answer you are looking for is:
- When two parallel lines are cut by a transversal, the resulting alternate exterior angles are congruent.
