Here are my 3 problems
Numba 1. -4 (x + 2 (5xy - x ) )
Numba 2. -4 (x + 5 (-3xy + x ) )
Numba 3. -2 (3x + 3 (-10xy + 3x) )
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2006-10-23 17:57:45 · 6 answers · asked by Guy Who Brushes His Teeth* 6 in Education & Reference ➔ Homework Help
Numba 1. -4 (x + 2 (5xy - x ) )
-4 (x + 10xy-2x)-multiply 2 by 5xy -x
-4 (-x +10xy) -combine like terms, x-2x
4x - 40xy -distribute/multiply -4 to ea term
4x (1-10y) = simplest from
Numba 2. -4 (x + 5 (-3xy + x ) )
-4 (x -15xy + 5x)
-4 (6x - 15xy)
-24 x + 60xy
Numba 3. -2 (3x + 3 (-10xy + 3x) )
-2 (3x -30xy + 9x)
-2 (12x – 30 xy)
-24x + 60 xy
2006-10-23 18:09:48 · answer #1 · answered by ♥♥♥H뮧hË¥™♥♥♥ 6 · 0⤊ 0⤋
Juile forgot to change the 2 to a 8 when he multiplied by 4
1. -4 (x + 2 (5xy - x ) )
-4 (x + 10xy - 2x )
-4x +(-40)xy - (-8)x
-4x -40xy +8x
-40xy+4x
2006-10-23 18:09:08 · answer #2 · answered by Billy 4 · 0⤊ 0⤋
I'll do one, you should be able to do the rest after that.
1. -4 (x + 2 (5xy - x ) )
-4 (x + 10xy - 2x )
-4x +(-40)xy - (-4)x
-4x -40xy +4x
Start from the inner most and work your way out.
2 (5xy - x ) = 10xy - 2x
Substitute that back in: -4 (x + 10xy - 2x )
Mutiply watch your signs! -4x +(-40)xy - (-4)x
Simplify:-4x -40xy +4x
2006-10-23 18:03:35 · answer #3 · answered by Juile 2 · 1⤊ 1⤋
the way you have that's actual. i can't think of that every physique could locate fault which includes your substituting a sequence of parentheses with a sequence of brackets (see you later as the two components of the set are a similar, of direction). So the way you have that's right, as could, "E. value of the retina interior the attention [what the pigment (eye colour) interior the iris is preserving].... " or "E. value of the retina interior the attention (what the pigment [eye colour] interior the iris is preserving)...." the only distinction utilising brackets could make is that it could decelerate your typing. except you're a hunt-and-%. typist, your hands already know the place the two components of the parentheses are, yet i know I had to provide as much as hunt for the brackets keys - :)
2016-11-25 01:34:30 · answer #4 · answered by mcmorris 4 · 0⤊ 0⤋
Just adding onto Julie....i think that Simplify:-4x -40xy +4x can be simplified more to -40xy since -4x and +4x cancel each other out
2006-10-23 18:08:53 · answer #5 · answered by rdoggg19 2 · 0⤊ 0⤋
uh u should do it by your self... but here's one advice.... you should mult the inside parentheses....... and then do the outside.....
2006-10-23 18:00:28 · answer #6 · answered by thenuyy 2 · 1⤊ 0⤋