2007-11-28 07:22:17 · 8 answers · asked by smileyD 1 in Science & Mathematics ➔ Mathematics
x² - 5x² = - 4 x²
2007-11-28 10:09:53 · answer #1 · answered by Como 7 · 2⤊ 0⤋
PEMDAS:Parenthesis, Exponents,(Multiplication/branch) then (upload/Subtract) Please Excuse (My expensive) (Aunt Sally). FOIL:First+outdoors+interior+final (x+2)(x+a million)+(X+5)(x+3) So do the multiply first (x+2)(x+a million) use foil x*x + x*a million + 2*x + 2*a million x^2 + 1x + 2x + 2 x^2 + 3x + 2 next multiply (X+5)(x+3) x*x + x*3 + 5*x + 5*3 x^2 +3x +5x + 15 x^2 +8x + 15 --------------- now upload like term x^2 + 3x + 2 + x^2 +8x + 15 x^2 + x^2 + 8x + 3x + 2 + 15 2x^2 + 11x + 17
2016-11-12 23:26:57 · answer #2 · answered by apley 4 · 0⤊ 0⤋
Correct operational order is as follows:
x(x-5x)
x(-4x)
-4x^2
Expansion:
x^2 - 5x^2
Simplification
-4x^2
2007-11-28 07:34:58 · answer #3 · answered by Debbie 2 · 0⤊ 1⤋
You just multiply each of those terms by x...
x*x=x^2
x*(-5x)=-5x^2
So this is x^2-5x^2=-4x^2
We could also look at it as x(-4x) by simplifying in first, but this gives the same answer of -4x^2.
2007-11-28 07:26:00 · answer #4 · answered by Anonymous · 0⤊ 1⤋
x(x-5x)
= x^2-5x^2
=-4x^2
2007-11-28 07:34:54 · answer #5 · answered by surmy 2 · 0⤊ 0⤋
x(x-5x)
= x^2 - 5x^2
= - 4x^2
or
x(x-5x)
= x (-4x)
= -4x^2
Hope that helps
2007-11-28 07:26:16 · answer #6 · answered by gmat g 3 · 0⤊ 0⤋
x^2-5x^2
simplified:
-4x^2
2007-11-28 07:25:26 · answer #7 · answered by mathfan09 1 · 1⤊ 1⤋
-4x^2
2007-11-28 07:29:09 · answer #8 · answered by bla 4 · 0⤊ 0⤋