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Scorpion4ik [409]

3 years ago

7

Simplify 8(A + 2B) + 6(2A + b.

2 answers:

melisa1 [442]3 years ago

8 0

You should first multiply and then sum up the A together and B together : 8 A + 16 B + 12 A + 6 B = 20 A + 22 B :D

-Dominant- [34]3 years ago

7 0

We do the distributive property

8*a+ 16b + 6*2 +6*b =

8a+16b + 12a +6b

Now we need to combine like terms.

16b and 6b are like terms.

16b+6b= 22b

12a and 8a are also like terms.

12a+8a= 20a

Our most simple form is: 20a+22b

Final answer: 20a + 22b

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ryzh [129]

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a=b+44°

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2b=46°

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3 years ago

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3 years ago

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yulyashka [42]

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3 years ago

Ierofanga [76]

Answer:

A

Step-by-step explanation:

Sum the product of the components in the first row of A with the corresponding components of the first column in B

Repeat this with the components in the second row of A with the corresponding components of the second column in B, that is

AB

= $\left[\begin{array}{ccc}2&1\\3&4\\\end{array}\right]$ $\left[\begin{array}{ccc}3&1\\5&2\\\end{array}\right]$

= $\left[\begin{array}{ccc}2(3)+1(5)&2(1)+1(2)\\3(3)+4(5)&3(1)+4(2)\\\end{array}\right]$

= $\left[\begin{array}{ccc}6+5&2+2\\9+20&3+8\\\end{array}\right]$

= $\left[\begin{array}{ccc}11&4\\29&11\\\end{array}\right]$ → A

6 0

4 years ago