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The equation about X (m-1) the square of x-3x-4 = 0 when the equation has two real roots, the value range of M//
b^2-4ac=(-3)^2-4.(m-1).(-4)=16m+25
When the equation has two real roots,
B ^ 2-4ac should be greater than or equal to 0, i.e
16m+25>=0
m>=-25/16
Please write a linear equation of one variable with solution x = 6. The coefficient of X is half
1/2x+3=6
Write an equation of degree one variable so that its solution is x = 2
2X-2=2
To solve the system of linear equations of one variable, 1 / 2 X-7 = 9 / 6 X-2
It's not a system of equations
1/2x-7=9/6x-2
1/2x-7=3/2x-2
x=-5
It's better for the owner to think for himself
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