X^2 - 10x - 9 = 0
first we will move the constant term to the other side
x^2 - 10x = 9
then, to both sides we will add the number that makes the polynomial on the left a perfect square trinomial. Take half of the coefficient of x, then square it. half of the coefficient of x (-10) is -5, and -5 squared is 25. so:
x^2 - 10x + 25 = 34
factor the perfect square trinomial
(x - 5)^2 = 34
x - 5 = plus or minus sqrt(34)
x = 5 plus or minus sqrt(34)
Answer:
C
Step-by-step explanation:
Use the Power of a Product Property, where:
Therefore:
Answer:
Can you post the problem
Step-by-step explanation:
Well, what you need to figure out is what times 9 is 63. That would be 7. So n=7 :)
