what is the value of c such that x^2-20x+c is a perfect-square trinomial? Question what is the value of c such that x^2-20x+c is a perfect-square trinomial? in progress 0 Math Claire 2 weeks 2021-10-13T04:55:48+00:00 2021-10-13T04:55:48+00:00 2 Answers 0

## Answers ( )

Answer:c=100

Step-by-step explanation:To complete the square, it would really help if the coefficient of x^2 is 1 which is so formula for c in this case is just (b/2)^2

So (-20/2)^2

simplifying gives

(-10)^2

100

c=100

Answer:100

Step-by-step explanation:The question is on making the equation a perfect square

Given ;

To get c;

where ;