Answer:
1521.16402
Step-by-step explanation:
use fraction- division format

Multiply the numerator and denominator by 100

Reduce by 2

Now do long division
1521. 164022
189|287500
- 189
985
- 945
400
- 378
220
- 189
310
- 189
1210
- 1134
760
- 756
40
- 0
400
- 378
22
Answer:
{-2,10}
Step-by-step explanation:
x^2 - 8x = 20
Take the coefficient of x
-8
Divide by 2
-8/2 =-4
Square it
(-4)^2 =16
Add this to each side
x^2 - 8x+16 = 20+16
x^2 - 8x+16 = 36
The left hand side becomes( x + (-8/2) )^2
(x - 4)^2 = 36
Take the square root of each side
sqrt((x - 4)^2) =±sqrt( 36)
x-4 = ±6
Add 4 to each side
x-4+4 = 4±6
x = 4±6
x = 4+6 x = 4-6
x = 10 x = -2
407 over 5 but it also has to be simplified