FOIL stands for first, outer, inner, and last.
So, you multiply the first terms together, the outer terms together, the inner terms together, and then the last terms together.
(b+3)(b-9)
b^2-9b+3b-27 Then simplify
b^2-6b-27
2.9x10 to the third power is the scientific notation
I think it is $10 for 20%
Answer:
Step-by-step explanation:
1) x - 21x = 5
x = x * 1
21x = x * 21
GCF = x
x - 21x = 5
x*(1 -21) = 5
x * (-20) = 5
-20x = 5
x =5/-20
x = -1/4
2) 6n² = 6 * n * n
30n = 6 * 5 * n
GCF = 6*n = 6n
6n² + 30n = 0
6n*(n + 5 ) = 0
6n = 0 or n + 5 = 0
n = 0 n = -5
n = 0 or -5
Answer:
a. x<3 and x>4.
b.x∈(-∞,3) and x∈(4,∞).
Step-by-step explanation:
a.
Given data in the question:
We have solve for x.
Solution:-
x∈(-∞,2)
Given equation:-
We have to solve for x.
Solution:-
x∈(4,∞).
b.The values that are possible for inequality 1 are less than 3 to negative infinity and values possible second inequality are greater than 4 to infinity.
