x2-2x-10-5 = 0
x2-2x-15 = 0
(x+3)(x-5) = 0
x = -3 or x = 5
2
If x squared -10 = 0 then x = the square root of 10
n2 - 100 = (n + 10)(n - 10)
20x2 - 3x + 10 does not have any real factors.
(5x - 2)(x - 5)
2
If x squared -10 = 0 then x = the square root of 10
n2 - 100 = (n + 10)(n - 10)
20x2 - 3x + 10 does not have any real factors.
(5x - 2)(x - 5)
10x^2 - x - 2 = (5x + 2)(2x - 1)
(3r + 2)(r - 5)
10 squared equals 100. 102 = 10*10 10*10 = 100
x2+2x-120 = (x+12)(x-10) when factored
The factors are [3x + 5 - 2*sqrt(10)] and [3x 5 + 2*sqrt(10)].
10 squared means 10*10 which equals 100.
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