Answer:
c
Step-by-step explanation:
x³ - y³ ← is a difference of cubes and factors as
x³ - y³ = (x - y)(x² + xy + y²)
Given
+ = - 1
Multiply through by xy to clear the fractions
x² + y² = - xy ← substitute into second factor of expansion
x³ - y³ = (x - y)(- xy + xy) = (x - y) × 0 = 0 → c
9x=180
X= 20
Largest 4x 4(20) = 80 degrees
The correct answer is -3 through -6.
To put 5/2 on a number line, you have to make the fraction a mixed number (2 1/2) then put it on a number line.
Hope this helped!!
Would assume it to be 36x² - 25 = 0
<span>36x² - 25 = 0
</span>
<span>(6x)² - 5</span>²<span> = 0</span>
(6x + 5)(6x - 5) = 0 By difference of two squares.
6x + 5 = 0 or 6x - 5 = 0
6x = -5 6x = 5
x = -5/6 x = 5/6
x = +5/6 or - 5/6