z+√z=6/25 find the value of z
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u² + u = 6/25
u² + u + 1/4 = (25+24)/100 = 49/100
(u+1/2)² = 49/100
u + 1/2 = ±7/10
u = (-5±7)/10 = -12/10, 2/10
√z = -12/10, 2/10
z = 144/100, 4/100
z = 36/25, 1/25
z = 1/25
HöPe ïT hèLps u ☺
u² + u = 6/25
u² + u + 1/4 = (25+24)/100 = 49/100
(u+1/2)² = 49/100
u + 1/2 = ±7/10
u = (-5±7)/10 = -12/10, 2/10
√z = -12/10, 2/10
z = 144/100, 4/100
z = 36/25, 1/25
z = 1/25
HöPe ïT hèLps u ☺
asim26:
this is correct answer but tell me how had u solved
Answered by
0
Answer:
The value of z is 1/25.
Step-by-step explanation:
- In context to the given question , we have to find the value of 'z'
GIVEN:
z+√z=6/25
TO FIND:
z= ?
SOLUTION;
z+√z=6/25
Let √z = m , then z= m²
new equation ;
m² + m = 6/25
now by adding 1/4 on both the sides we get
m²+m+1/4 = 6/25 + 1/4
(m + 1/2)² = (24+25)/100
(m + 1/2)² = 49/100
BY square rooting on both side , we get:
m + 1/2= ± 7/10
By transposing method , we get
m = 7/10 - 1/2 m = -7/10 -1/2
m = (7-5)/10 m = (-7-5)/10
m = 2/10 =1/5 m = -12/10 = -6/5
As we know m² = z
m² = 1/25 =z m = -36/25=z
As negative value doesn't satisfy the equation
z = 1/25
Therefore, the value of z is 1/25.
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