X^2+2x-5x-10
x(x+2)-5(x+2)
(x-5)(x+2)
Step-by-step explanation:
1. difference in algebraic expression is known SUBTRACTION
a² -b²=(a+b)(a-b)
see on "a" there is square and also on b
2. no there is no matter
now let multiply (a+b) (a-b)
a²+ab-ab-b²
a²-b²
now let multiply (a-b) (a+b)
a²+ab-ba-b²
ab and ba is same
a² -b²
Answer:
9/12 Is the correct answer right
We need to find 19% of 205.
To compute any percentage, you divide by 100 and then multiply by the percentage you want:
So, there are 39 students in fifth grade (we obvisouly had to round, since there can't be a fractional number of students)
The answer to your question is 10:10:20 because it doubles from the 2 people.