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11 answers

x(x - 10)+ 9 = 0

x^2 - 10x + 9 = 0

(x - 9)(x - 1) = 0

x - 9 = 0 or x - 1 = 0

x = 9 or x = 1

therefore, x = 9 or x = 1

2007-11-12 09:51:31 · answer #1 · answered by Nonoi_Orange 2 · 0 0

x=9 and x=1

2007-11-11 15:45:00 · answer #2 · answered by john 4 · 0 0

x(x-10) + 9
= x² - 10x + 9
= (x - 9)(x - 1)
x = 9 and 1

2007-11-11 15:40:49 · answer #3 · answered by 3 · 0 0

x^2 -10x + 9

(x-9)(x-1) = 0

x = 9 and x = 1

2007-11-11 15:38:40 · answer #4 · answered by Ms. Exxclusive 5 · 0 0

X(X-10) + 9 = 0

X^2 -10X + 9 = 0

(X - 1) (X - 9) = 0

X IS EITHER 1 OR 9

AARON C.

2007-11-11 15:58:35 · answer #5 · answered by aaron 2 · 0 0

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2016-12-08 19:13:26 · answer #6 · answered by molinari 4 · 0 0

x(x-10)+9=0
x^2-10x+9=0

D=(-10)^2-4*1*9=64


x1=9 x2=1

and (x-9)(x-1)=0

2007-11-11 21:41:26 · answer #7 · answered by ? 4 · 0 0

x^2-10x+9
(x-1)(x-9)=0
x=1 or 9

2007-11-11 15:58:58 · answer #8 · answered by Dave aka Spider Monkey 7 · 0 0

hi
it's better to do your homeworks yourself!!!!
but a little help
x(x-10)+9 = x^2-10x+9 = 0
for solving aX^2 + bX +c =0
delta = b^2 - 4ac
answer1 = (-b - SQRT(delta)) / (2a)
answer2 = (-b + SQRT(delta)) / (2a)

in here
delta = (-10)^2-4*1*9=64
SQRT(64) = 8

do the rest yourself...
And stick it in your mind to having good mathematics
you HAVE TO practice and practice on YOURSELF!
a math lover!

2007-11-11 15:52:44 · answer #9 · answered by Anonymous · 0 0

x^2-10x+9 multiply x(x)....x(-10)....+9
(x-9)(x-1) factor out the equation
to check your answer just multiply (x-9)(x-1)

2007-11-11 15:48:02 · answer #10 · answered by *love life* 2 · 0 0

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