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9x^{2}-12x+4=\left(x-5\right)\left(9x+1\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(3x-2\right)^{2}.
9x^{2}-12x+4=9x^{2}-44x-5
Use the distributive property to multiply x-5 by 9x+1 and combine like terms.
9x^{2}-12x+4-9x^{2}=-44x-5
Subtract 9x^{2} from both sides.
-12x+4=-44x-5
Combine 9x^{2} and -9x^{2} to get 0.
-12x+4+44x=-5
Add 44x to both sides.
32x+4=-5
Combine -12x and 44x to get 32x.
32x=-5-4
Subtract 4 from both sides.
32x=-9
Subtract 4 from -5 to get -9.
x=\frac{-9}{32}
Divide both sides by 32.
x=-\frac{9}{32}
Fraction \frac{-9}{32} can be rewritten as -\frac{9}{32} by extracting the negative sign.