Answer:
9(3x - 7)² = 16
9(3x - 7)² - 16 =0
[3(3x-7)-4][3(3x-7)+4]=0
(9x-21-4)(9x-21+4)=0
(9x-25)(9x-17)= 81x²-378x+425
quadratic equation for all 9(3x - 7)² = 16 = 81x²-378x+425
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