Answer:
No, it is not.
Explanation:
remember PEMDAS (parenthesis, exponents, mult., etc)
use distributive property, but solve parenthesis first
3x(x+4)²
(x+4)(x+4) = x² + 8x + 16
3x(x² + 8x + 16) >>> 3x³ + 24x² + 48x
so the equation is not equal
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