8) Find BA -5 B = -7 -8 3 A = -6 6. 6 4. #7 #8 Is AB = BA ?

Q: -p 5a If det p 9 = - 17 then det -9 56 5c

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Q: Which expressions are equivalent to -7z+ (-6.5) + 2.5z + 6y – 1.5? Select all that apply. O A. -8+6y…

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Q: Which expression is equivalent to (x+4)(x-8) a. (x+2)²-28 b. (x-2)²-36 c. (x+2)²-28 d. (x-2)?-36…

A: The answer are as follows

Q: Let A = -4 2 [33] - 3 - 4 Find - 2A. - 2A =

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Q: Find, if possible, (a) AB and (b) BA.

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Q: If possible, find AB, BA A² AB A² = A-3 3-10 C BA= [

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Q: Find each difference

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Q: Simplify the expression (5- 4)(/5+6). 2/5+1 b. - 19 C. 3/5- 24 d. 2.5- 19

A: We have to simplify the expression ( √5 - 4 ) (√5 + 6 ) .

Q: Simplify the following under Zs and Z7. (-4) + a. 3 -2 b. 3-1 -5+(-11) C.

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Q: Find -9 + -3 + 3 +9 + 15...+51. a. 231 b. 384 C. 312 d. 385 е. 296

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Q: Зх — 5 2.х —7 = 3 - -- c) 4 6.

A:

Q: 6. Which algebraic expression is equivalent to the expression below? 8(5x +9) + 12r - 11 A. 52r+ 72…

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Q: a. x + 5x + 6

A: here the first question is  a) x2+5x+6 we have to write above expression as a product of two linear…

Q: Find, if possible, (a) AB and (b) BA.

A: (a) Consider the given matrices A and B. As the number of the rows is equal to the number of columns…

Q: 1 Determine the values of a, b and c if: 2(a,b,4) +(6,8, c) – 3(7,c,-4) = (-24,3,25)

A: We can solve this as follows:

Q: A.B? B.A?

A: Given that,A=-9-411 and B=-6-829.   Obtain A·B as follows. A·B=-9-411-6-829      =-9-6-4-8+12+49…

Q: -3 1 -3 -2 A = B = -1 1 2 -2 Ex: 42 7 AB = АВ -5 2.

A: Given:        A=0-3-2-121        B=-310-12-2    Multiplying Matrix A and B   AB=0-3-2-121·-310-12-2