Here are possibilities of what you mean:
a: (3-2)(x-2)=10
Solution:
(3-2)(x-2)=10
1(x-2)=10
x-2=10/1
x=10+2=12
b: 3-2(x-2)=10
Solution:
3-2(x-2)=10
3-10=2(x-2)
-7=2x-4
-3=2x
x=-3/2=-1.5
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34
x2-10 = 0 x2 = 10 x = the square root of 10
x1:y1 = x2:y2 4:-2 = x2:5 x2 = (4*5)/-2 x2 = -10
10
Given that 52 - x2 + x = 10, then -52 + x2 - x + 10 = x2 - x - 42 = (x - 7)(x + 6) = 0. Therefore, x = 7 or -6.