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Bad White [126]
2 years ago
11

How to solve 2a x a x a x3a + b +4b

Mathematics
2 answers:
laiz [17]2 years ago
4 0

2a \cdot  a \cdot a \cdot 3a +b+4b\\\\=6a^{1+1+1+1} +5b\\\\=6a^4 +5b

kodGreya [7K]2 years ago
3 0

Answer:

6 {a}^{4}  + 5b

Step-by-step explanation:

2a \times  a\times a \times 3 a+ b + 4b \\ 2a \times a = 2 {a}^{2}  \\ 2 {a}^{2}  \times a = 2 {a}^{3}  \\ 2 {a}^{3}  \times 3a = 6 {a}^{4}  \\b +  4b = 5b

Therefore the answer is

6 {a}^{4}  + 5b

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Answer:

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Step-by-step explanation:

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= 6+4

= 10

Hope this helps!

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3 years ago
The sum of the ages of Kristen and Ben is 32. Four years ago Kristen was twice as old as Ben. How old are they both now?
Elan Coil [88]

Let us say that:

K = age of Kristen

B = age of Ben

 

From the problem, we make the equations:

eqtn 1: K + B = 32

eqtn 2: (K – 4) = 2 (B – 4)

 

Simplifying eqtn 2:

K – 4 = 2 B – 8

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Plugging in this to eqtn 2:

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From eqtn 2:

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So Kristen is 20 while Ben is 12.

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