Answer:

Step-by-step explanation:

<h3>so the dividend and divisor were both multiplied by 100.</h3>
In the second step you should have subtracted the 2x to move it to the other or side of the equals sign
Answer:
f(x) = (x-2) (x+10)
Step-by-step explanation:
f(x)=x^2+8x-20
Factor the right hand side
What 2 numbers multiply to -20 and add to 8
-2 * 10 = -20
-2 + 10 = 8
f(x) = (x-2) (x+10)
Then we can use the zero product property to help us to find the zero's