Evaluate
-3\left(x^{2}-6x+4\right)^{2}+4x
Expand
-3x^{4}+36x^{3}-132x^{2}+148x-48
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-3\left(x^{4}-12x^{3}+44x^{2}-48x+16\right)+4x
Square x^{2}-6x+4.
-3x^{4}+36x^{3}-132x^{2}+144x-48+4x
Use the distributive property to multiply -3 by x^{4}-12x^{3}+44x^{2}-48x+16.
-3x^{4}+36x^{3}-132x^{2}+148x-48
Combine 144x and 4x to get 148x.
-3\left(x^{4}-12x^{3}+44x^{2}-48x+16\right)+4x
Square x^{2}-6x+4.
-3x^{4}+36x^{3}-132x^{2}+144x-48+4x
Use the distributive property to multiply -3 by x^{4}-12x^{3}+44x^{2}-48x+16.
-3x^{4}+36x^{3}-132x^{2}+148x-48
Combine 144x and 4x to get 148x.
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