Q19 of 134 Page 4


Using factorization, find the roots of the quadratic equation: 9x 2-16 = 0.


9x 2 - 16 = 0
(3x) 2 - 4 2 = 0

Using a 2 – b 2 = (a – b)(a + b)
(3x – 4)(3x + 4) = 0

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