3/4(-10+2/5)
first do parenthesis
factor out -1 inside the parenthesis
3/4 * (-1*(10-2/5))
borrow from the 10
3/4 * (-1*( 9 5/5-2/5))
3/4 * -1(9 3/5)
change the mixed number to an improper fraction
3/4 * -1 ((5*9+3)/5)
3/4 * -1(48/5)
3/4 * (-48/5)
-144/20
divide by 4
-36/5
-7 r 1
-7 1/5
y = x³ + 3x² - x - 3
0 = x³ + 3x² - x - 3
0 = x²(x) + x²(3) - 1(x) - 1(3)
0 = x²(x + 3) - 1(x + 3)
0 = (x² - 1)(x + 3)
0 = (x² + x - x - 1)(x + 3)
0 = (x(x) + x(1) - 1(x) - 1(1))(x + 3)
0 = (x(x + 1) - 1(x + 1))(x + 3)
0 = (x - 1)(x + 1)(x + 3)
0 = x - 1 or 0 = x + 1 or 0 = x + 3
+ 1 + 1 - 1 - 1 - 3 - 3
1 = x or -1 = x or -3 = x
Solution Set: {-3, -1, 1}
The solution to x + 8.5 = 64.5 is 56.
x + 8.5 = 64.5
- 8.5 - 8.5
---------------------------
x = 56
Answer: 8
Step-by-step explanation:
8^2 + 8^2 = c^2
64 + 64 = c^2
128=c^2
2
2* 2 
4 * 2
8
