anonymous
  • anonymous
Use the commutative property to identify which expression is equal to (6+4)*5? a. 5*(6+4) <----my answer b 5*6+4*6 c 5+(6*4) d (6+4*5) Use the distributive property to decide which of the following is equivalent to 2(3 + 5x)? Select all that apply. 2(3) + 2(5x) 6 + 10x 2 + 8x -6x Which of the following is equivalent to -3(x - 7y)? -3(x) - 7y -3x - 21y -3x + 21y 18xy
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@hartnn
Jack1
  • Jack1
commutative property question: yep, i agree with your answer
anonymous
  • anonymous
ok thank you

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Jack1
  • Jack1
distributive property question... which do u think and why?
anonymous
  • anonymous
i thought A and B
Jack1
  • Jack1
yep, 100%, perfect!
Jack1
  • Jack1
now just the 3rd question... which answer do u believe is correct?
anonymous
  • anonymous
B or C?
Jack1
  • Jack1
remember: positive number x positive number = positive number (eg 2 x 3 = 6) negative number x positive number = negative number (eg 2 x (-3) = -6) negative number x negative number = positive number (eg (-2) x (-3) = 6)
Jack1
  • Jack1
so which: B or C...?
UsukiDoll
  • UsukiDoll
distribute the -3 all over (x-7y) for -3(x - 7y)
anonymous
  • anonymous
b
UsukiDoll
  • UsukiDoll
no for a sign reason . a negative times a negative is a positive.
UsukiDoll
  • UsukiDoll
ex. -2 x -2 = 4
anonymous
  • anonymous
so it would be C?
UsukiDoll
  • UsukiDoll
yes distribute -3 all over (x-7y) -3(x) + (-7y)(-3) -3x+21y
anonymous
  • anonymous
ok thank you

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