Step-by-step explanation:
x(x+2)(x+4)
first get rid of the bracket
x square +2x+x+4
x^2 + 3x + 4
Answer:
x^3 <-- exponent, x to the power of three
=(x(x+2))(x+4)
=(x(x+2))(x)+(x(x+2))(4)
=x^3+2x^2+4x^2+8x
=x^3+6x^2+8x
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