How do you solve 20-9x+x^2=0?

2 Answers
Aug 31, 2016

x=5 or x=3

Explanation:

The first step is to factor:
x^2 - 9x + 20 = 0
(x-5) (x-4) = 0

The second step is to set each factor to zero:
x=5 or x=3

Aug 31, 2016

x=4 or x=5

Explanation:

The first step when solving for solutions is to factor the equation:
x^2-9x+20=0, which when factored will be: (x-4)(x-5)=0

The next step is to solve each for zero:
(x-4)(x-5)=0
x=4 or
x=5