Answer:
x = -2
x= -3
Step-by-step explanation:
x 2+5x+6=0
To solve the equation, factor x^2+5x+6 using formula x^2+(a+b)x+ab=(x+a)(x+b). To find a and b, set up a system to be solved.
a+b=5
ab=6
Since ab is positive, a and b have the same sign. Since a+b is positive, a and b are both positive. List all such integer pairs that give product 6.
1,6
2,3
Calculate the sum for each pair.
1+6=7
2+3=5
The solution is the pair that gives sum 5.
a=2
b=3
Rewrite factored expression (x+a)(x+b) using the obtained values.
(x+2)(x+3)
To find equation solutions, solve x+2=0 and x+3=0.
x=−2
x=−3
Answer:
Process to proof Theorem and Formula nrealted to natural number.......
5) A (1,2) B (2,4)
slope. (1-2)=2-4
slope. -1= -2
slope = 2
6) D (-5,1) E ( -2,0)
slope. (-5-(-2))=1-0
slope. (-5+2)=1
slope. -3=1
slope = -1/3
7) C (-3,4) E (-2,0)
slope. (-3-(-2))=4-0
slope. (-3+2)=4
slope. -1=4
slope = -4
8) D (-5,1) B (2,4)
slope. (-5-2)=1-4
slope. (-7)= -3
slope = 3/7
2 less than n is n-2
And
n plus n is 2n
So to to get 3% of 159 you: 159x0.03=4.77
