Answer:
(x+1)(2x+5)
Step-by-step explanation:
f(x) = 2x² + 7x + 5
Factor the expression by grouping. First, the expression needs to be rewritten as 2x²+ax+bx+5. To find a and b, set up a system to be solved.
a+b=7
ab=2×5=10
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 10.
1,10
2,5
Calculate the sum for each pair.
1+10=11
2+5=7
The solution is the pair that gives sum 7.
a=2
b=5
2x²+7x+5 as (2x²+2x)+(5x+5).
(2x²+2x)+(5x+5)
Factor out 2x in the first and 5 in the second group.
2x(x+1)+5(x+1)
Factor out common term x+1 by using distributive property.
(x+1)(2x+5)
Answer:C
Step-by-step explanation:
Wdym by animal testing? Like doing experiments on rats as an example?
Answer:
275
Step-by-step explanation:
40% + 4%
250 + 25 = 275
OR
625 x .44 = 275
Answer: option 1
Step-by-step explanation:The value of digit in the hundreds place in the number 653,841 is 8 hundreds = 800
According to the question, we have to find a number whose the value of digit in the thousands place is 800.
Let us consider the first number which is 748,917
The value of digit in the thousands place = 8 thousands = 8000
Let us consider of the number 8000
=
= 800 which is the value of digit in the hundreds place in the number 653,841.
Therefore, 748,917 is the required number.
So, Option 1 is the correct answer.
