2007-04-20 10:55:27 · 15 answers · asked by Dominique M 1 in Science & Mathematics ➔ Mathematics
collecting like terms
64x + 16x + 1 = 0
80x + 1 = 0
Transpose 1
80x + 1 - 1 = 0 - 1
80x = - 1
Divide 80 on both sides of the equation
80x / 80 = - 1 / 80
x = - 1/80
- - - - - - - -s-
2007-04-20 13:42:21 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
64x+16x+1=0 first -1 from both sides
64x+16x = -1 add 64x+16x
80x= -1 divide both sides by 80
x= -1/80
2007-04-20 19:49:01 · answer #2 · answered by Justina 3 · 0⤊ 0⤋
As written
64x+16x+1=0
80x+1=0
80x=-1
x=-1/80
But I'll bet you meant
64x^2+16x+1=0
(8x+1)^2=0
8x+1=0
8x=-1
x=-1/8
2007-04-20 19:09:48 · answer #3 · answered by yupchagee 7 · 0⤊ 0⤋
64x + 16x + 1 = 0
80x + 1 = 0
80x = -1
x = -1/80
you meant:
64x^2 + 16x + 1 = 0
(8x + 1) (8x + 1)= 0
(8x + 1)^2 = 0
8x + 1 = 0
8x = -1
x = -1/8
2007-04-21 03:17:56 · answer #4 · answered by bootis32 6 · 0⤊ 0⤋
Do you mean 64x^2? If so...
64 x^2 + 16 x + 1 = 0
64 x^2 + 8x + 8x + 1 = 0
(64x^2 + 8x) + (8x + 1) = 0
8x(8x + 1) + 1(8x + 1) = 0
(8x + 1)^2 = 0
8x + 1 = 0
8x = -1
x = -1/8
If not....
80x + 1 = 0
80x = -1
x = -1/80
2007-04-20 18:00:39 · answer #5 · answered by mwebbshs 3 · 2⤊ 0⤋
64x+16x+1 = 0
80x + 1 = 0
80x = -1
x = -1/80
But did you mean 64x^2 + 16x + 1?
Factor it
(8x + 1)(8x+1) = 0
8x+1 = 0
x = -1/8
2007-04-20 17:59:51 · answer #6 · answered by anotherbsdparent 5 · 3⤊ 0⤋
64x + 16x + 1= 0
80x + 1 =0
80x = -1
x= -1/80
did you mean 64x^2 + 16x + 1= 0
64x^2 + 8x +8x +1 = 0
(64x^2 +8x)(8x + 1)
8x(8x +1) 1(8x + 1)
(8x + 1)(8x + 1)
8x + 1 = 0
8x = -1
x = -1/8
2007-04-20 18:22:57 · answer #7 · answered by jay gal 3 · 0⤊ 0⤋
add the common multiples.
64x+16x =80x
Get x to one side of the equation by minusing 1 from both sides
80x+1=0 ------>80x= -1
-1=-1
Get x by itself by dividing 80 from both sides
80x/80= -1/80
x= -1/80
2007-04-20 19:34:49 · answer #8 · answered by Jacob B 2 · 0⤊ 0⤋
64x+16x+1=0
80x+1=0
80x=-1
x=-1/80
2007-04-20 18:49:58 · answer #9 · answered by sw_joey 2 · 0⤊ 0⤋
your goal is to get x by itself on one side of the equals sign
first subtract 1 from each side of the equation
64x + 16x = -1
then combine x's (add 64x and 16x)
80x = -1
then divide by 80 on both sides of the equation to get x by itself
x = -1/80 (or as a decimal) x = -0.0125
2007-04-20 19:11:26 · answer #10 · answered by curiosity7 1 · 0⤊ 0⤋