I agree. Both of the equations come out to 2x^2+14x+20
(2x+10)(x+2)
Use the FOIL method
2x^2+4x+10x+20
Combine like terms
2x^2+14x+20
(2x+4)(x+5)
Use the FOIL method
2x^2+10x+4x+20
Combine like terms
2x^2+14x+20
Answer:
23.4
Step-by-step explanation:
It's actually 23.400 but sense there's a zero you can just remove the zeros or keep them.
Answer:
Option D is the correct answer
Step-by-step explanation:
The answer is 12:40 or 3:10
8(2:5)= 16:40
4(3:10)=12:40
Add them and get 28:40 and minus 40-28 and get 12:40
To double check multiply the ratios in smaller numbers but have the same total ratio. Hoped this works!!
Answer:
For Example: Evaluate a2b for a = –2, b = 3, c = –4, and d = 4.
Step-by-step explanation:
To find my answer, I just plug in the given values, being careful to use parentheses, particularly around the "minus" signs. Especially when I'm just starting out, drawing the parentheses first may be helpful:
a2 b
( )2 ( )
(–2)2 (3)
(4)(3)
12
Note how using parentheses helped me keep track of the "minus" sign on the value of a. This was important, because I might otherwise have squared only the 2, ending up with –4, which would have been wrong.
By the way, it turned out that we didn't need the values for the variables c and d. When you're given a big set of expressions to evaluate, you should expect that there will often be one or another of the variables that won't be included in any particular exercise in the set.
Evaluate a – cd for a = –2, b = 3, c = –4, and d = 4.
In this exercise, they've given me extra information. There is no b in the expression they want me to evaluate, so I can ignore this value in my working:
(–2) – (–4)(4)
–2 – (–16)
–2 + 16
16 – 2
14