[tex]mx^{2} - 2(m-1)x + (m+2) = 0[/tex]
For a quadratic equation to have real and equal roots,
[tex]b^{2} - 4ac = 0[/tex]
So,
[tex](2(m-1))^{2} - 4 ( m+2)(m) = 0 \\\\(2m-2)^{2} - 4(m^{2} + 2m) = 0 \\ \\4m^{2} - 8m + 4 - 4m^{2} - 8m = 0 \\\\-8m = -4 \\\\m = \frac{4}{8} \\\\m = \frac{1}{2}[/tex]
Answer:
mx²-2(m-1)x+m+2=0
Step-by-step explanation:
Here,a=m,b=-2(m-1),c=(m+2).
D=b²-4ac
Now,
b²-4ac=0
{-2(m-1)}²-4*m*(m+2)=0
4(m²+1-2m)-{4m(m+2)}=0
4m²+4-8m-(4m²+8m)=0
4m²+4-8m-4m²-8m=0
4m²-4m²-8m-8m+4=0
0-16m+4=0
-16m=-4
m=-4/-16
m=1/4
Hence,m=1/4 is answer
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Answers & Comments
Verified answer
Step-by-step explanation:
Given:
[tex]mx^{2} - 2(m-1)x + (m+2) = 0[/tex]
For a quadratic equation to have real and equal roots,
[tex]b^{2} - 4ac = 0[/tex]
So,
[tex](2(m-1))^{2} - 4 ( m+2)(m) = 0 \\\\(2m-2)^{2} - 4(m^{2} + 2m) = 0 \\ \\4m^{2} - 8m + 4 - 4m^{2} - 8m = 0 \\\\-8m = -4 \\\\m = \frac{4}{8} \\\\m = \frac{1}{2}[/tex]
Answer:
m = [tex]\frac{1}{2}[/tex]
Answer:
mx²-2(m-1)x+m+2=0
Step-by-step explanation:
Here,a=m,b=-2(m-1),c=(m+2).
D=b²-4ac
Now,
b²-4ac=0
{-2(m-1)}²-4*m*(m+2)=0
4(m²+1-2m)-{4m(m+2)}=0
4m²+4-8m-(4m²+8m)=0
4m²+4-8m-4m²-8m=0
4m²-4m²-8m-8m+4=0
0-16m+4=0
-16m=-4
m=-4/-16
m=1/4
Hence,m=1/4 is answer