1000 (1 + x) & sup2; = 1210 to solve the quadratic equation of one variable, using the direct flattening method

1000 (1 + x) & sup2; = 1210 to solve the quadratic equation of one variable, using the direct flattening method

1000（1+x）²=1210,
(1+x)^2=1.21
1+x=±1.1
1+x=1.1,1+x=-1.1
x1=0.1,x2=-2.1

Exercises for solving quadratic equation of one variable
Direct leveling method, formula method, factorization method, each 25
If the difficulty is moderate, the more the better
To solve the problem

1.x²=8x-9=02.x²-10x+25=73.x²=6x=14.x²+12x+25=05.x²+4x=106.x²-6x=117.3x²+8x-3=08.x²+3x+1=09.2x²=6+7x10.3x²-9x+2=011.x²-7x-18=012.2x²-9+8=0 13...

There are 200 exercises on quadratic equation of one variable. It's not a practical problem to calculate,
Thank you

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On the problem of quadratic equation of one variable
On the univariate quadratic equation x ^ 2-2mx + m ^ 2-2m = 0
If X1 and X2 are the two real roots of the equation, then x2 > X1 and X2 are satisfied

The solution of this equation is X1 = (2m - √ 8m) / 2
x2=(2m+√8m)/2
(2m + √ 8m) / 2 > (2m - √ 8m) / 2 is obtained from x2 > x1
By x2