12 - 3 = 9
3 + 9 = 12
12 - 9 = 3
Answer:
(2x-9)(2x+9)
Step-by-step explanation:
This is a difference of squares because it can be written as (2x)^2-9^2
The formula for factoring a difference of squares is a^2-b^2=(a-b)(a+b)
So replace a with 2x and b with 9 giving us
4x^2-81=(2x-9)(2x+9)
Answer:
a= g-b-c
Step-by-step explanation:
g=a+c+b
g-b=a+c
g-b-c= a
a= g-b-c
Answer:
Real numbers are mainly classified into rational and irrational numbers. Rational numbers include all integers and fractions. All negative integers and whole numbers make up the set of integers. Whole numbers comprise of all natural numbers and zero.
Step-by-step explanation:
The answer is 8. You rewrite the fraction as 5.25.
