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.16x 2 + 9 = 24x ()

16x2 + 9 = 24x

16x 2 − 24x + 9 = 0

(4x − 3)2 = 0

4x − 3 = 0

x=3
4

. x1 = x2 = 3
4

. 3x 2 = 16x + 12 ()

3x 2 = 16x + 12
3x 2 − 16x − 12 = 0
(3x + 2)(x − 6) = 0

3x + 2 = 0 x −6 = 0

x = −2 x =6
3

.x2 = 6 x1 = −2
3

.x +3 = −9 ()

1−x x