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2. Simplify the following expressions:a) (4x)^2 ( (3x)^2-7x+9)

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The equation in the problem is:


4x^2(3x^2-7x+9)

for simplify this expression we have to dristribute the 4x^2 into the parenthesis:


12x^4-7x^3+9

and now this is the shorter you can have the expression

in this case we can't use the cuadratic equation or any other algebraic expresion.

User Chris Hobbs
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