your answer will be the last one
First divide by 3 because we don't want any factor in front of the x² when doing factorization:
3x² + 15x – 18 = 0 => x² + 5 - 6 = 0
Then find the two numbers that multiply to -6 and add up to +5:
x² + 5 - 6 = 0 => (x-1)(x+6) = 0
So the solutions are x=1 or x=-6, that's answer B.
1. 24÷12 =$2 $2 is the answer
2. $140÷$20=7 $270÷$45=6. Elisa and the reason is <---- the working out
Answer:
the answer on edgenuty is option D
Step-by-step explanation:
i just took the quiz
Answer:
The discriminant is 0.
Step-by-step explanation:
we know that
In a quadratic equation of the form
The discriminant is equal to
If D=0 -----> The equation has only one real solution
If D>0 ----> The equation has two real solutions
If D<0 ----> The equation has complex solutions
In this problem
If the equation has only one intercept (x=6)
then
The equation has only one real solution
therefore
The discriminant is 0.