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Factor completely.

12x^(3)y^(4)z^(2)+4x^(7)y^(2)
Answer:

Factor completely.\newline12x3y4z2+4x7y2 12 x^{3} y^{4} z^{2}+4 x^{7} y^{2} \newlineAnswer:

Full solution

Q. Factor completely.\newline12x3y4z2+4x7y2 12 x^{3} y^{4} z^{2}+4 x^{7} y^{2} \newlineAnswer:
  1. Identify GCF: Identify the greatest common factor (GCF) of the terms 12x3y4z212x^{3}y^{4}z^{2} and 4x7y24x^{7}y^{2}. The GCF of the numerical coefficients (1212 and 44) is 44. The GCF of the xx terms (x3x^{3} and x7x^{7}) is x3x^{3}, since we take the lowest power. The GCF of the yy terms (4x7y24x^{7}y^{2}00 and 4x7y24x^{7}y^{2}11) is 4x7y24x^{7}y^{2}11, since we take the lowest power. There is no 4x7y24x^{7}y^{2}33 term in the second term, so 4x7y24x^{7}y^{2}44 is not part of the GCF. The GCF is therefore 4x7y24x^{7}y^{2}55.
  2. Factor out GCF: Factor out the GCF from the original expression. 4x3y24x^{3}y^{2} is factored out, leaving us with the expression inside the parentheses. 12x3y4z212x^{3}y^{4}z^{2} divided by 4x3y24x^{3}y^{2} gives us 3y2z23y^{2}z^{2}. 4x7y24x^{7}y^{2} divided by 4x3y24x^{3}y^{2} gives us x4x^{4}. The factored expression is 4x3y2(3y2z2+x4)4x^{3}y^{2}(3y^{2}z^{2} + x^{4}).
  3. Check factored expression: Check the factored expression by distributing the GCF back into the parentheses to ensure it gives us the original expression.\newline4x3y2(3y2z2)=12x3y4z24x^{3}y^{2}(3y^{2}z^{2}) = 12x^{3}y^{4}z^{2}.\newline4x3y2(x4)=4x7y24x^{3}y^{2}(x^{4}) = 4x^{7}y^{2}.\newlineThe original expression is recovered, confirming the factoring is correct.

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