0
You would use the FOIL method, first outer inner last, to get this answer. You multiply the first set of numbers together, then the outer set of numbers, then the inner, and finally the last set of numbers. All that's left to do is simplify if needed and in order of descending powers.
So ( a + b ) * ( c + d ) = ac + ad + bc + bd
This would give us the answer of...
( x - 2 ) ( x + 4 ) = x^2 + 4x - 2x - 8 = x^2 + 2x - 8
Wiki User
∙ 9y ago
Wiki User
∙ 13y ago8
Add your answer:
Earn +20 pts
What is the answer to x over x plus 4 equals 4 over x plus 4 plus 2?
x/(x + 4) = 4/(x + 4) + 2 (x - 4)/(x + 4) = 2 x - 4 = 2x + 8 -x = 12 x = -12
What does x plus x plus 2 plus x plus 4 plus x plus 6 equals 42?
x+x+2+x+4+x+6=42(x+x+x+x)+(2+4+6)=424x+12=424x=30x=15/2or 7 and 1/2
What does x plus 4 x plus 2 equal?
X + 4(x) + 2x+ 4x + 25x + 2
What is x2-4 over x2 plus 2x-8 times x2 plus 6x plus 8 over x2 plus 4x plus 4?
(x^2-4) (x^2+6x+8) __________ x _________ which is (x^2+2x-8) (x^2+4x+4) (x+2)(x-2) (x^2+4x+2x+8) ___________ x _____________ which is (x^2+4x-2x-8) (x^2+2x+2x+4) (x+2)(x-2) x(x+4)+2(x+4) ___________ x ____________ which is x(x+4)-2(x+4) x(x+2)+2(x+2) (x+2)(x-2) (x+2)(x+4) ________ x _________ which is 1 as all the terms in the num & den cancel (x-2)(x+4) (x+2)(x+2)
X squared plus 8x plus 16?
(x+4)(x+4), or (x+4)^2.
X squared over x plus 2 which equals 4 over x plus 2?
x^2/x +2=4/x +2 (x^2/x)-(4/x)=0 (x^2-4)/x=0 x^2-4=0 (x+2)(x-2)=0 x=±2
What is the answer to x plus 2 over 2 plus x plus 5 over 7 equal 4?
If: x + 2/2 + x + 5/7 = 4 Then: x = 8/7
5x plus 4 x-2 -2x 2 x-1 plus 3 x plus 2 math college?
The equation 5X plus 4 X-2 -2X 2 X-1 plus3 X plus 2 equals to 2. This is college math.
Factor x squared plus 2x plus 4?
(x+2)(x+2) or (x+2)^2
Which is a zero function x2 plus 6x plus 8?
(x + 2)(x + 4) x = -2, -4
What is 4 over x plus 4 minus 2 over x plus 1?
2/x + 5
Select the expression that is equivalent to (x plus 4)2.?
what is equivalent to (x plus 4)2
