The qeustion is 4(x + 2) I'd really apreciate it if you could explain this to me.
Thanks
-CBA
2006-11-15 07:13:47 · 7 answers · asked by Contradicted_by_All 1 in Science & Mathematics ➔ Mathematics
what do you want to know about 4(x + 2) ?
4(x + 2) = 4x + 8
is there anything else? '
2006-11-15 07:20:14 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Depend on what you are asking
If simplifying:
you want to multiply each term in the perentheses by the term on the out side
4(x + 2)
= (4 * x) + (4 * 2) [* means times or multiply by]
= 4x + 8
I the real equation you meant to write is 4(x + 2) = 0 and have to solve for the variable x, then take the same steps and try to get x by it self.
4x + 8 = 0 (from previous explanation)
4x = -8 (subtract 8 from both sides)
x = -(8/4) (divide both sides by 4)
x = -2 (the negative carries down and the 8 divided by 4 is 2)
Tip: remember that whatever you do to one side of the equation you have to do to the other. When I say there are sides to the equation, that means that the equal sign is the middle.
HOPE THIS HELPS!
2006-11-15 07:48:15 · answer #2 · answered by ecogrl23 2 · 0⤊ 0⤋
4(x+2) .. are you trying to simplify this term?
Well, when you have a number put in front of parentheses, that means you have that many of what ever is inside.
Some examples:
4(x+2) is 4 x's and 4 2's... =4x+8.
3(x+5) is 3 x's and 3 5's... = 3x+15.
5(2x+3) is 5 (2x)'s and 5 3's... = 10x+15.
This is called distribution.
For more help, try purplemath.com
Hope I steered you in the right direction,
UMRmathmajor
2006-11-15 07:20:59 · answer #3 · answered by UMRmathmajor 3 · 1⤊ 0⤋
If there is a number outside of a parenthesis, and there is a variable, letter, and a number inside the parenthesis, you multiply the number outside by the variable inside and the number outside by the number inside.
so: 4(x+2)
is the same as 4(x)+4(2)
and that equals 4x+8
2006-11-15 07:27:32 · answer #4 · answered by bluejbird_2005 2 · 0⤊ 0⤋
For increasing cubic binomials the final formula is as follows: (a + b) ^ 3 = a^3 + 3*a^2*b^a million + 3*a^a million*b^2 + b^3 on your case, a is x and b is -y^5 So (x - y^5)^3 = x^3 + 3*x^2*(-y^5)^a million + 3*x^a million*(-y^5)^2 + (-y^5)^3 Simplified: =x^3 - 3x^2*y^5 + 3x*y^10 - y^15 :D
2016-11-29 04:15:22 · answer #5 · answered by Anonymous · 0⤊ 0⤋
use the distributive property to distrubte the 4 to the x and 2 therefore 4x+8
2006-11-15 07:21:45 · answer #6 · answered by BLEHH 3 · 1⤊ 0⤋
What do you want to know? You've written an expression, not an equation.
Yes, I teach algebra at a state college!
2006-11-15 07:17:17 · answer #7 · answered by modulo_function 7 · 1⤊ 0⤋