anonymous
  • anonymous
can some one help me with expansion and factorization of algebraic expression
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
3(2a+b) how do i exspand this?
Directrix
  • Directrix
The distributive property of multiplication "distributes" the multiplication of 2 by (2a +b) over the "+". 3(2a+b) = 3 (2a) + 3(b) = 6a + 3b
anonymous
  • anonymous
thank u now this one i have to exspand can u break it down in more steps for me plsss

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anonymous
  • anonymous
4(3X+4y)
Directrix
  • Directrix
4(3X+4y) = 4(3x) + 4(4y) = 12x + 16y
anonymous
  • anonymous
now exsplain the steps u did to get the answer bc thats what im having trouble on
Hero
  • Hero
It's called the distributive property. The distributive property states that for any integer a, b, and c a(b + c) = ab + ac For example 4(x + y) = 4x + 4y 3(2x + 7y) = 6x + 21y
anonymous
  • anonymous
so your manly taking away the brackets?
anonymous
  • anonymous
yes... try to convince yourself... is 4*(3+2) = 4*3 + 4*2 ??? 4*(3+2) = 4*(5) = 20 4*3 + 4*2 = 12 + 8 = 20
Hero
  • Hero
You have to understand the purpose of the brackets...Think order of operations together with the distributive rule
anonymous
  • anonymous
now whats the purpose of the brackets
anonymous
  • anonymous
and whats the distributive rule ?
anonymous
  • anonymous
it means that a(b + c) and a*b + a*c have the same VALUE, no matter what a, b, and c are.
anonymous
  • anonymous
notice one is written with parenthesis and the other is not. they both have equal values.
anonymous
  • anonymous
now is that for the distruibutive thing or for the purpose of brackets
anonymous
  • anonymous
this EQUATION is called the distributive property of multiplication over addition: a(b+c) = ab + ac
anonymous
  • anonymous
let's try some numbers to illustrate this... pick any 3 numbers...
anonymous
  • anonymous
something you can calculate quickly would be preferable..
anonymous
  • anonymous
486
anonymous
  • anonymous
4, 8, and 6?
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok when you see this expression 8(4+6) you would calculate what's in the parenthesis first to get 8(10) which is...
anonymous
  • anonymous
4+6=10
anonymous
  • anonymous
ok so what's 8(10) =
anonymous
  • anonymous
that means 8 times 10
anonymous
  • anonymous
80 thats if u mean whats 8*10
anonymous
  • anonymous
yes, 8(10) means 8*10
anonymous
  • anonymous
so, 8(4+6) = 80 now distributive property says we should get the same answer if we did this: 8*4 + 8*6
anonymous
  • anonymous
8*4 = 8*6 =
anonymous
  • anonymous
32 and 48
anonymous
  • anonymous
ok, so what's 32 + 48 =
anonymous
  • anonymous
80
anonymous
  • anonymous
so, do you agree that 8(4 + 6) = 8*4 + 8*6 ? this is the distributive property... you need to know this property very well in algebra...
anonymous
  • anonymous
yes
anonymous
  • anonymous
now can u explain statistics
anonymous
  • anonymous
i'm glad you stuck with it asking questions. good work...
anonymous
  • anonymous
i'll try... btw, did you know that 98% of all statistics are made up?
anonymous
  • anonymous
i'm not that good at stats.
anonymous
  • anonymous
r u serious i never knew that this is my first time working on statistics i tried youtbe vidoes this stff is hard to learn and im only in 8 grade and they want me to learn this stuff lmfao
anonymous
  • anonymous
I'm part of that 98%... it was a joke, get it?
anonymous
  • anonymous
no lets just study the statistics stuff lmfao
anonymous
  • anonymous
anyway, if you have a different question please post it so other answerers can attempt at it... someone better at stats. ok?
anonymous
  • anonymous
good luck...

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