x2-3x-10=0 find the root by completsquaring method
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x^2 - 3x - 10 = 0
x^2 - 3x + (3/2)^2 - (3/2)^2 - 10 = 0
(x - 3/2)^2 - (9/4 + 40/4) = 0
(x - 3/2)^2 - (49/4) = 0
(x - 3/2)^2 - (7/2)^2 = 0
(x - 3/2 + 7/2)(x - 3/2 - 7/2)
(x + 2)(x - 5)
x = -2 , x = 5
hope it helps
x^2 - 3x + (3/2)^2 - (3/2)^2 - 10 = 0
(x - 3/2)^2 - (9/4 + 40/4) = 0
(x - 3/2)^2 - (49/4) = 0
(x - 3/2)^2 - (7/2)^2 = 0
(x - 3/2 + 7/2)(x - 3/2 - 7/2)
(x + 2)(x - 5)
x = -2 , x = 5
hope it helps
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