=> x - 8 = 0 => x = 8
Hoặc x + 11 = 0 => x = -11
(x – 8)(x + 11) = 0
(x-8) =0
x-8 =0
=0+8
=8
(x+11) =0
x+11 =0
x =0+11
x =11
(x – 8)(x + 11) = 0
(x-8) =0
x-8 =0
x =0+8
x =8
(x+11) =0
x+11 =0
x =0+11
x =11
=> x - 8 = 0 => x = 8
Hoặc x + 11 = 0 => x = -11
(x – 8)(x + 11) = 0
(x-8) =0
x-8 =0
=0+8
=8
(x+11) =0
x+11 =0
x =0+11
x =11
(x – 8)(x + 11) = 0
(x-8) =0
x-8 =0
x =0+8
x =8
(x+11) =0
x+11 =0
x =0+11
x =11
Viết tập hợp các số nguyên:
a ) – 4 < x < 2 ; c ) − 8 ≤ x ≤ − 5 ; e ) – 7 < x < 0 ; b ) 0 < x ≤ 11 ; d ) − 5 ≤ x < 8 ; f ) 0 ≤ x < 1.
( x - 8 ) ( x + 11 ) = 0
Tìm x thuộc Z biết: a) x (x - 7) = 0; b) x (x + 11) = 0; c) (x + 8) (x - 12) = 0; d) (x - 3) ( x 2 + 3) = 0;
x +8/ 12 +x +9/ 11 +x +10/10 +3 =0
Tìm x biết:
a/2+4+6+8+...+2x=210
b/11(x-6)=4x+11
c/(4x-8).[x+(-3)] =0
Tìm x biết: \(\dfrac{x+8}{12}+\dfrac{x+9}{11}+\dfrac{x+10}{10}+3=0\)
Tìm x,biết
\(\frac{x+8}{12}+\frac{x+9}{11}+\frac{x+10}{10}+3=0\)0
X = [ 33/5 CHIA 6 - 0, 125 x 8 CONG 32 / 15 x 0,03 ] x 11/4
tim x thuoc Z biet:
a, x (x-7)=0
b, x (x+11)=0
c, (x+8) (x-12)
d, (x-3) (x2 + 3)=0